I used solvent cement. It is very thin like lacquer thinner. It does not glue any thing but plastic. You can wash paint off of your hands with it. Once you glue plastic together with it you won't get it apart . Also no parts trimming it melts part together. Chrome parts must be cleaned for it to work.
I would have my mom save her diabetic syringes for me . If you just inject a little on one edge it flows around the whole part. They make a bottle as the glue pictured above. I also have one of them. For use on bare plastic it molds parts together. For smaller painted parts use a good brand super glue or the glue mentioned above. I like the solvent cement because you can hold parts together and just add a tab to the edge and it flows around what you touch with the needle.
Fill the needle once and throw it away after its depressed. When you go to pull the plunger out the end rubber is melted off the end.
