Paddlepop haven’t had one of those for a while 
I don’t want it stuck to your finger though.
I usually use tooth picks to apply. Small amounts.
yeah…bunnings sell whole packets of paddlepop sticks, as stirrers…
Handy for various tasks.
Also, i have dental material applicators on hand as well…tiny, disposable plastic applicators…
and use gloves.
You’ll figure it out champ.
I effed up one day and the fertilizer spreader went arse over tit. Broke the whole plastic hopper. Gorilla glue applied so I could get back in action. Was up all night sorting that out.
Got it done 
Pretty sure Low Guido has a video on these.
From memory… massively over volumes and poor seals. Anything you do is gonna be under volumes on this one though! I’d bet it would take a vector nozzle… 
Either way no matter what you do the tiny barrel is gonna be hard to get any decent fps out of.
It was a challenge to get 280 out of the 14cm APC-9K barrel, this will be on another level.