For TEMPORARY use, you could clean the inside of it with rubbing alchol, then use a large gob of JB weld. Keep in mind youll have to cut this panal out, so just a gob of it around the hole, dont layer it or anything unless you want to remove the entire panal... You might even be able to use sho goo
Good luck
~Nate

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95 Honda Shadow ACE 1100.
1999 Plymouth Neon Expresso. 2.4 swap, 10.5 to 1 comp, big cams. Autocross time attack vehicle!
2012 Escape, 'hunter" (5 sp 4cyl)