Since I am getting married in the summer, my fiance and I went to a local "pick your own" strawberry patch. We've made strawberry freezer jam to put in little jars. We paid $20.00 for two flats of strawberries. I found a wholesale jar company online and ordered enough little jars for each person/family that are 4 oz. ($20.00) The packs of Sur-Jel aren't too expensive, either. I bought some super-cheap ribbon to tie on the jars.
For less than $80.00 we have enough strawberry jam favors for 100 guests/families.
It does take a little effort compared to most, but everyone in my family is looking forward to getting one! Who doesn't like an edible favor!!??
Besides, picking strawberries, cutting them and making the jam with my man was a moment to be treasured forever! We actually had a great time doing it! Definitely a good way to build some fantastic memories! (The strawberry fight in the field was too much fun!)
Anyway, that is my input on a homemade, inexpensive favor idea....
Good Luck with whatever you choose to do!...And, above all-congrats!!!