I learned a new trick while working on Little C's birthday party today.
I had just finished putting the last batch of marshmallow fondant in Ziploc bags when I noticed something strange. The lettering on the bags had partially rubbed off! It had to have been the vegetable shortening. My hands were covered in the stuff. So to test it out I grabbed a new Ziploc bag and attempted to remove the lettering using the vegetable shortening. It worked! And here is how I did it:
1. Take a small glob of vegetable shortening and rub it over all of the lettering you wish to remove.
2. Take a DRY paper towel and begin to rub the lettering off. (you will need to switch to another paper towel once it becomes saturated with the shortening)
3. TAH DAH! You now have a plastic Ziploc bag free of any lettering.
I have seen this done with nail polish remover but if your looking for a less toxic (or smelly) method then this is perfect. It's also much safer if you want your little one to help.