Plastic cement

[Sumpter250]

Hypo syringe needles can be purchased with "blunt" ( square cut, as opposed to angle cut...helps prevent accidental injections of "glue" )tips. I use one for applying carpenter's glue, when building small wood structures. It got a lot of use, so far, with the "Lobster Pound" construction.
I keep a short piece of Brass rod ( of the required diameter to fit ) in the tip of the needle. It helps keep the glue, in the needle, from drying out and plugging the needle.
MEK, is a great plastic cement ! H O W E V E R , Seriously !!, use adequate ventilation, and avoid, as much as possible, skin contact. MEK can do ugly things. I use a small paint brush to apply the MEK to the joint. ( it evaporates too quickly to apply it to the part and then try to join it to the model, or another part )
MEK was used to assemble this "Junkbuild" space craft, out of plastic pill bottles, flash cubes, salvaged plastic kit parts, etc.
Oh yeah, there's a plastic "shot glass", and a Ping Pong ball in there too !