I recall seeing instructions on how to make these labels as well..
One could still make their own.
Here's the how to: Print to Fabric with InkJet Printers: How to
And it will also tell ya what you need to get.
I've done the wax paper method and it did work. But alas, I do not hv Bubble Jet Set 2000 (to make it washable) to *play* with.
Next item to be in my to-get list...lol...