Hey i can make pretty much any die cuts you guys want. hit me up. i will charge $20 for as many stickers as you want on a 12in x 12in piece of vinyl. you could fit almost 30 helmet size ones, or like 12 large ones. The colors i have are posted below. you have to pay shipping, but i can fit them into a standard size envelope for you.
colors: red, blue, silver, black, gold, green
Large Sticker Sheet Example (sorry edges got cut off, selling this one for $10)
Can customize one for you, any size stickers and any design you choose, 12in x 12in sheet for $20 or 12in x 6in sheet for $13