With that budget I will probably not be able to offer you anything reasonable. Stickers are higher volume stuff, but If you would get few more people I can ship it to multiple postal addresses afterwards.
Discussion
I was thinking, it might be worth a shot to look at AliExpress. They might have lover volumes of custom stickers priced at better rates. It can be a hit and miss in regards of quality though. Also the chances of them accepting BTC is pretty slim.