you should give em a call and explain exactly what you want them to do
they'll tell you what's possible
also ask for a price since theres often a large difference between two virtually similar stickers....
diecuts in black-white are apparently alot cheaper then colored diecuts (atleast at my shop they are....)
if you don't find what youre looking for; look for another shop; shops may seem to work the same niche but i had to call 3 sticker shops before finding the right one; the others were specialized in large stickerjobs for signs and trucks and stuff; none of the small things...
(also ask what the minimum order is; often you'll need to pay for 10, 20,.. or 100!! stickers to get a reasonable price/sticker)