Biscut glue applicator

I have searched a few WW mags and have yet to find the "mushroom slice" applicator tip (without the bottle) that will fit a Titebond glue bottle.



I don't do enough biscut joining to waste my glue by transferring the Titebond to a 'biscut glue bottle'.



Has anyone seen a source for just the appropriate tip and would you share where it can be purchased?



Thanks, Bob