Get as creative as you want with your rewards! Here are a few tips:
2. Consider virtual rewards, such as having a google hangout for people at a certain level or a special newsletter, Facebook group, etc. or giving them some sort of special access/input to your show.
3. You can offer special content for patrons at certain levels, by using the premium content feature in Podbean.
4. If you have show merchandise, a book, an online course, etc., these are great rewards for those who give a bit more.
You can see more examples here.