UPDATE again- Perf said he found more crystal laminate but he doesn't have the $100 to order it. Pay him the $100 to order the crystal and then he can order the crystal laminates and then give you however many crystal laminates to make up for fronting him the $100.
The crystal laminate is a HOT SELLER because of it's ability to replicate the front NY lams by 90% exact or more. So if Perf ever says he is out, front him the $100 so he can order more, he'll then send you your crystal sheets plus have more in stock that way!
Now for the back laminate you will want to use perf's 5mil Choice Gloss.
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UPDATE- Turns out people said that the below 10mil teslin, 7mil front laminate, 5mil back laminate created a NY fake that was a little more thin than a real NY. I would say to print the template onto 14 mil laser teslin with most (Canon or Epson inkjet printers) and then use Perf's 7 mil laminate for the back to make it thicker, however Perf is out of Crsytal laminate at the time of this writing (he may or may not get more crystal in the future so just check with him anyway).
So now you have 10mil teslin, 7mil front laminate, 5mil back laminate equaling a finished 22mil ID. 22mil is very close if not the exact thickness of a real New York ID. Perf's high quality laminates will replicate the real New York ID's extremely well.
UPDATE, since Perf is out of Crystal, you'll want to buy Perf's 10mil Lexan Polycarbonate for the front, either 10 mil inkjet teslin from Perf or 14 mil teslin from brainstormidsupply, and then Perf's 5 mil gloss or Perf's 7 mil gloss.
You can either have 10mil Lexan Polycarbonate, 10 mil teslin, 5 mil gloss = 25 mil
OR
You can have 10mil Lexan Polycarbonate, 10 mil teslin, 7 mil gloss = 27 mil
OR
You can have 10mil Lexan Polycarbonate, 14 mil teslin, 5 mil gloss = 29 mil
OR
You can have 10mil Lexan Polycarbonate, 14 mil teslin, 7 mil gloss = 31 mil
*****UPDATE*****
Since Perf can get more crystal most likely, you can do
10mil teslin, 7mil front crystal, 5mil back gloss = 22 mil HOWEVER somebody said that is a little to thin compared to a real NY.
So you can try
14mil laser teslin, 7mil front crystal, 5mil back gloss = 26 mil
OR
14mil laser teslin, 7mil front crystal, 7mil back gloss = 28 mil
(Most inkjet Canon printers & inkjet Epson printers can print on laser teslin.)
Keep in mind the 22 mil original Crystal plan was too thin, so you can decide for yourself which thickness replicates the real New York thickness best, and if you can create the fake NY and compare it to the real NY do let everyone know which combination works best to get the right thickness.
His 7mil Soft Crystal lams replicate the feel of the front of a real NY ID almost exactly, around 90% perfect to be exact. Previously "XxTheKidxX" recommended using a fine grit sandpaper as a front lamination carrier to replicate the gritty feel. The fine grit sandpaper would embed the gritty feel onto the front lam.
However now that perf's new art store is up you won't need to do the fine grit sandpaper method. His 7mil Soft Crystal lams and 5mil Choice Gloss are really high quality lams and they are flexible and bend extremely well replicating the bendability and flexibilty of the real New York ID's.
So cut them smaller with a paper cutter and then tape them together with scotch tape from the left side, like an alligators mouth. Tutorial #1 of the version 3 Guide goes into great detail of the "Teslin Method" so read that to get a good idea of what I'm talking about right now.
Now you will have a front 7mil lam and a back 5mil lam taped like an alligators mouth. Only cut them smaller each session you are working on making ID's. Because if you pre cut them all smaller and taped them all at once, over time a small amount of dust and lint may collect on the lams and you don't want little specs getting under the final lamination. You could/should use a can of compressed air to blow away dust from the laminates before you laminate.
Also use the air can to blow dust off the teslin if you need to BEFORE you apply the hologram stamp. Wearing latex gloves or nitrile gloves (same thing but better found at all stores too) greatly keeps lint and dust from getting on your supplies. Fingers carry more crap so wear gloves to keep crap off the supplies and to keep your fingerprints off supplies.
Now take the New York wavy line (sin curve) hologram stamp that you made using the $39.99 justritestampers DOT COM stamp kit. I included the NY hologram template in with the Version 3 Guide. Just like Tutorial #1 says in the guide, you will want to drag the New York Hologram template into a larger photoshop box so the full stamp is in view. The New York templates and hologram templates were made in a 3.4 width by 2.2 height box.
Make a new 300 DPI template file as a 5.0 width by 2.2 height dimensions file then drag the New York hologram template into that. Click on the wavy line layers and then type control + I to invert the colors. You want the waves to be white. Then change the background color to black.
To make stamps with the kit you want the hologram design part to be white and the background to be black. Print that out onto the special paper that comes with the kit (transparency paper). Then cut along the outside of the black area with scissors. You want the black to be over sized a little so that you can cut away the excess polymer easy when you are making the stamp.
The Tutorial #1 in the Version 3 Guide gives some tips for making hologram stamps you'll want to read but also their site had video tutorials for making the stamps and paperwork comes with the kit.
Now that you have your NY stamp made you will want to rub some interference gold pearl ex onto the stamp and then lightly blow onto the stamp so that the excess pearl ex comes off. Then stamp the hologram onto the teslin. There are real NY ID pictures in the Version 3 Guide that show the hologram's location on the ID's so make sure to line up the hologram in the general area and also make sure that the hologram is straight on the front. Make sure you don't stamp it slanted.
It's real easy to stamp a hologram correctly using your stamp. The justritestampers kit sells clear see through stamp mounts which makes it perfect for lining up your holograms exactly. The real NY ID's use some type of uncommon hologram, but the pearl will work in 49 states besides New York.