In case you wanted to give it a try, here's what I did:
1. I just saved the empty plastic tealight cups (which by the way, the candles were a 24-pack of Sonoma brand at the Dollar Store, and yup, for $1.00! - Super Deal!).
2. I saved the wax from some of those brick style or large round style candles when the wicks burned out.
3. I just found an old butter dish - in the event the wax ruined anything, I didn't want it to be in a good bowl.
4. I just cut the wax into smaller chunks and tossed it into the bowl and put in right in the microwave - as a hint though, I only filled the bowl up about 1/2 way with the wax so there wasn't too much in there. Just keep checking the melting every few minutes and take out of the microwave once it turns liquidy.
5. If you are using a cheap butter style bowl, you'll easily be able to "bend" the bowl so theres a pour spout - place your wicks in each of the tealight cups, pour the liquid wax into the cups, and then just let them dry.
6. Voila - brand new tealights!! And only for the mere cost of some wicks - although, I'm still looking at the wicks and seeing what I can come up with that will burn equally well so I can go without even buying them - I'll keep everyone updated if I find anything!
Enjoy!!!