I promise that in keeping with the spirit of the institution, at least 50% of all funds donated for the museum will instead end up being spent on my car payment, and visits to strip clubs and Asian Massage Parlors.
I would consider it.
I'm not sure if I'd do it or not, but I'd consider it.
Your proposal reminds of the Car Talk Investment Fund (managed by Tom and Ray Magliozzi), which promised a 50% return. In other words, you would eventually be returned 50% of whatever money you originally invested...;-D....