I use 3d stickers often.
They're quick, easy and very affordable since I purchase them on ebay in 'batches' of 50pkgs. Instead of paying 5$ or more per pkg at my dist, it winds up costing me about 0.30cents per pkg and that's including the shipping charges.
I get a GREAT return on these.
You can do so much with them. I even occasionally seal them in the UV Gel so that they'll be protected and get more mileage out of them.
Clients LOVE them.
GREAT work, Glo!