I gave a bunch to the local airport, they hung them from the cieling there. Many of the pilots that hung out there had gotten kits as presents, that they never built, so they gave them to me. In return, they were also hung up there after I built them.
Then again, you may want to just pack em away in the attick, as was suggested. I wish I still had all the ones that I did when I was a kid, to redo. Some of them can't be found anymore, and if they are still availiable somewhere, the $$$ puts them out of my range.