The Sticker Monkey runs a digital sticker making production line thingy. This means that lots of pretty ace stuff can be achieved, but that there are some pretty specific requirements for artwork to make a successful sticker. If you have found a wee image on a web site that you like, 99.95% of the time this is UNACCEPTABLE for making stickers.
The machines at Sticker towers eat VECTORS for breakfast, and spit out ace stickers for lunch. Yummy.
The machines can also do an acceptable prints form some types of bit-mapped image files, such as .jpg, but this needs to be checked out thoroughly first. Assume nothing, and the monkey shall answer all your questions in good time.
if you actually know what you are doing,
please prepare your files in Adobe Illustrator, and send a wee .ai file to the monkey. He will gladly then open it up and see what you want.
if you THINK you know what you are doing, ASK! He doesn't bite (unless you want him to) but he does throw his own feces around sometimes, if you ask for stoopid stuff, you shall get some shit thrown back at you. you have been warned ;)
Colours are very important too, to the monkey, and to customers. Unfortunately, the monkey cannot match PANTONE colours, he can perform PROCESS colour prints, but the best result always come from SPOT colour jobs. The number of colours you want to use effects the production costs of the job - more colours = more ink = more money. geddit?!
Custom cut stickers are the norm, from squares and circles, to crazy bubbly shapes, even flowers, skulls and Chewbacca's can be cut out. For any cut, a vector is 100% necessary. this is an absolute.