I agree--this is tacky, and I wouldn't go.
If you need to ask for donations, tell me what you're raising money for and I'll decide whether I want to contribute, either by making a donation or by bidding in the charity auction, buying cookies, or getting a ticket for a benefit concert. (I have checked the "please don't send tote bag" or "no, I don't want either gift" box on more than one donation form over the years.)
However, the chances that I will buy chocolate chip cookies from your bake sale goes way down if there's no indication of what you're raising money for (or, of course, if it's for the Anti-Stripe Society and I'm pro-Stripe). I may not actually care whether it's for the Genghis Khan Middle School Quidditch Team rather than the Society for the Protection of Teapots, but if it doesn't say what it's for I'm going to assume someone just thought that here was a market for cookies, and "do I want these cookies baked by some random amateur?" is a different question than "do I want to help support the local middle school?"