Looking for something a bit different? We’ve been exploring our bioresin process’s potential for purely aesthetic implants. These are about 25mm x 25mm x 2mm–pretty low profile compared to the silicone variants on the market–not that we couldn’t go thicker if you all wanted something higher visibility 
wow, fancy 
That is a really cool application with that, are they “flexible” as in they can follow the body a little, and will you be making other designs?
You have most definitely thought about this already, but it got me and a friend thinking about some simple shapes that could look cool, like a long 50x10mm rectangle, a ring, arrow, lightening bolt.
If rings are doable, maybe a infinite and 
symbol as well, if the design supports combining simple shapes.
And I’d definitely go for something ticker if it would give a longer shine.
Not even a little bit 
If the community wants to supply some shapes, we’ll give 'em a go. Here is the STL we use for the heart.. take that as a guide;
HRT.stl (162.3 KB)
Notice the rounded edges and the inset embossed area for holding glow powder resin. These things are critical in any shapes provided.
Ring.stl (296.7 KB)
Long rectangle.stl (87.4 KB)
I put together a couple of models just for fun, happy to take suggestions/requests for other shapes. Are points like the heart has (sharp from above, rounded from the side) alright?