https://www.ebay.com/usr/bekateq?_trksid=p2047675.l2559
The Ultimate Crystal Clear Cast Resin, 2 kg Epoxy Resin + 1 Harder, Transparent
(As long as you use a weight to measure, all epoxy is very trouble-free)
aluminium molds are the top best
white stone molds are ok
pale stone mold need a lot of lube.
mixed color mold are crap.
Dual Color Hand Injection Kit (get the big mixing block)
it look like the winner is: 0.2mm Thick PTFE Barbecue Grill Mat
(its cheap - easy to cut - left over glitter will not stick on it)
VS:
1 mm Silicone Non Stick Kitchen Baking Sheet
Silicone Rubber Sheet Pad 0.2 and 1 mm
Teflon Sheet Pad 0.5 and 1 mm
tinfoil
Parchment paper
and Wax paper.
my bet will be a Centrifugal Spin Cast Molds and some kind of static mixing and 2 cups
so you add more and more red to the mix
http://www.staticmotionlessmixers.co.uk/index.html
made from a cheap 1 mm Silicone Non Stick Kitchen Baking Sheet
no sticky but may be to thick for the tail...later I will try some 500 x 500mm Clear Silicone Rubber Sheet Pad 0.3 mm from ebay.