You'll be able to make LOTS of these bunny treats with one bag each of pretzels, candy melts, and M&Ms. However, you will want to work in batches of 25 (or less if kids are helping) because the candy melts set up quickly. If some of the candy melts do set up before you are able to add the bunny, simply move those pretzels to another paper plate and microwave again at 50% power for 30 seconds at a time until soft.