I used this candy tone pink which is just really nice for seeing that internal action and fill level. Plus with the internal lighting you get a little extra mileage when you can see inside I feel like which is a really cool feature to these devices. Uv pink in the main eyes, the 3rd eye features a somewhat complex milli that is the subject to a deeper project I’m developing that is still under cover but one day you’ll hopefully see it and know what I’m talking about. It’s the biggest project I’ve ever done. This guy can still ship at time of writing for the holidays, we have till the end of the week and if I need to up the shipping speed to get it there in time lemme know and I’ll handle it. 21 and over for this one, comes with some added bonus goodies tossed in.