I realize its been awhile since this was posted but I just made my own tip. I had some old ink refill syringes with the blunt tips needles on them. I took one of the needles and cut it in half. Took the top off the glue, cut the inside part off and put the needle up in the top. Then put the orange lid back on and put it all back on the glue bottle. I tried it out and it works great.

great tip! lol

Wow those are expensive. I tried finding them in Fred Meyers (Krogers in the East) with NO LUCK whatsoever.

Wow! Jackpot. Looks like every size bottle & tip you might want to try here. I'm not sure what shipping costs, but they can't weigh much & if you're buying something else, it would be a perfect time.

I found a little bottle with a fine tip today: " 18-Gauge Glaze Applicator - 2-oz. Bottle" $3.10. http://www.enasco.com/product/9715007. It's for glazing ceramics, I assume. Nasco is a neat little warehouse full of all kinds art supplies, farm & education supplies. I found when my kids needed art supplies, they were usually enough cheaper, even Walmart couldn't beat them on many items like clay, glues, beads, etc. They even have sewing notions & thread.

Just wanted to say, I spent an hour in my Michael's store today looking for the bottle or tips near every paint section: craft, glass, acrylic, stencil, as wells as the cake decorating dept, the stamps area, kids art supplies, and fine arts/printmaking. Nothing! Maybe my store is smaller or they are out.
It would be nice to just find the tips, as the glue bottles themselves work fine. Thanks to everyone here on QB, such clever ideas.