Well i took time out to make a lil step by step walkthru of my gonk build,
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1. a card game plastic tray
2. plastic tray holder for my bathroom faucet
3. fiberglassed for reinforcement(is very thin flimsy plastic)
4. lined both pieces up on the gonk's butt
5.marked my lines for cutting
6.I got bored with cutting holes with my grinder and dremel so i decided to use a torch to melt out the initial hole( I wouldn't recommend this at home kids)lol
7. Ohhh pretty burning plastic! kinda cool as it drips fire.
8. Yes, Im a pyro.
9. and theres my initial hole.(of course i had to use the grinder to cut the rest out but it was for my own amusement) hehe
10. glued pieces in place
11. made sure the edges are flush
12. Let sit overnight to harden, scrape away adhesive then your ready to primer.
but wouldn't recommend it for everyone, using my pyro methods.