I've been watching and saving threads on this and it seems that on many of the sources given to find the metal tips for the Elmer's glue bottles, they're listed as "no longer available". I was hoping to find them at a new Michaels store near me but no luck. Then I found them on Overstock.com:
I got one set and just ordered two more. This set does have the metal wires to clean out the tips, 4 diff size metal tips, 3 caps with tips for diff size bottles and 2 bottles. Haven't used it yet but it looks good. will try to attach a pic. They're $6.90 ea and I got free shipping both times.