I was thinking put a form in it and make eye bolts from rod, but I suspect it doesn't go that slowly....
If you are feeling kind, there may be a local school that needs one...they aren't cheap, and it makes the most sense to use it for it's intended use....
Or look for an old basketball hoop and swipe the winch assembly off it and you have a nice electric come-a-long -P
Or build the worlds slowest electric go cart...the fact you have to plug it in won't matter, it will take 3 hours to reach the end of the extension cord...