Tex,
I was thinking about this when I was walking the dogs this morning. I'm glad you brought this up because I've been thinking about a solution. Here's what I've come up with so far (it's all in my mind right now).
As I said earlier my 96GTI is similar. I'm thinking or attaching an aluminum pole made out of square tubing, to a hinge in the top hood that would swing down when you open the hood. I happen to have a drain in the bin, I sometimes have been known to keep adult beverages in there. I'm thinking the pole could rest in the drain, or you could just put a rubber bumper on the end.
My 96GTI is in my sister's garage right now, but as soon as I bring it home I'm going to work on it, I'll let you know what I come up with and I'll post some pictures. I skinned up my thumb pretty good last year when the hood slammed shut, it needs fixing, the hood not my thumb.
Lou