> Several years ago I ordered several small plastic bottles for
> storing and applying hot glue.  I am unable to find the source
> to order more.

A 'piece of cake'!  Use Google, look for "heat resistant plastic
bottles", "Teflon bottles" or "PTFE bottles".

Jan Kijlstra

 [ Also LDPE (low density polyethylene) squeezable bottles.
 [ -- Robbie