Try mixing some dry plaster into your white glue to make a putty. I have done this a few times and it works well.

You can also use "spackling compound".  It's what you use to fill holes in your wall and you can find it at your local hardware store. I think it works the best.

Thanks,
Bruce Hirst

Last Edited By: Bruce Hirst Jun 13 11 5:58 AM. Edited 1 times.