[TheThinkTank] Following up with Bike Donors

Collectives, At Community Cycles when someone donates a bike we have them fill out a tax deductible donation receipt. This is a carbon copy form where the donor gets one copy and we get the other. We then take that info an input into our database. We've done this for about 9 months now and have quite a few Bike_Donor contacts.

So far we haven't contacted these donors but I've been thinking of doing a direct mail campaign to these people. My question is, have other collectives done this kind of direct mail? Or more broadly how are you following up with people who donate bikes and parts to you?

Peace