I got this idea from someone over at bowlingboards.com, and figured I could try it for cheap.
I bought a used food dehydrator on Craigslist for $20. This thing puts out a steady stream of low heat and a fan circulates the air.
Then I lined a planter with tinfoil to insulate it. No cost for the foil or the planter, which I already had.
I tested it first on a garbage ball sitting in my basement, and then did the real thing.
It's very simple: put the ball on the dehydrator tray, put the foil-lined planter over it, and let it sit for a half hour. When I come back and pull it out, the ball is covered with oil. Check out the pics if you don't believe me.
The nice thing is the ball gets warm, but not too hot to touch.
Then I simply spray it down with a simple green/rubbing alcohol mix, wipe it with a clean towel, rotate it, and put it back in for another half hour. Everything's sweated out by then.
The true test came when I took my T-Road Pearl to the lanes, and it had it's old reaction back.
You can't beat this for $20!
Pics here:
http://s554.photobucket.com/albums/jj420/dougb510/Homemade%20ball%20oven/Doug