If you go to Michaels or Hobby Lobby, you might find Roxanne's Glue Baste it with the metal tip.
But don't ever buy her glue again after this purchase to get the metal tip. It is way too expensive. $7.50-$8.00 plus shipping if ordering on line...
.25 oz. -$3.50 (ridiculous for glue only)
Roxann's glue is Elmer's, so just buy Elmer's water soluable and refil your bottle with the metal tip.
I took Sharon's class two year ago before she started selling the metal tip.
I can tell you that if you do not get a metal tip, you will have a mess on your hands. Then just clean the tip with soapy water, then blow through it and you are ready to use again.
This technique is Great!
Diana in Texas