Thanks for the responses, I had kind of given up. :-)
Patterns would be super easy for something like this as far as volume (obviously!) And since I wouldn't get dinged from paypal for each $2.00 pattern sale, it would still be okay as far as I'm concerned.
I'm wondering about the amount of the vouchers though - I mean, if I did say a $10 for a $20 voucher, that's 5 patterns they could get for $10. I guess I'm just unsure whether someone would want to buy 5 patterns all at once, you know? (Although I guess they really wouldn't have to buy them all at once...)
Maybe I'll just submit and see what happens. Doesn't hurt to try, right? :)