I have done this but put a fusible backing on the scrap right side up so the edges of the tear could be turned under with a toothpick and then ironed to hold. A teeny tiny hole the edges do not need to be turned under, just fuse in place.

I was snipping threads on a quilt top one day and snipped the top, and even though I was using small scissors the hole was pretty bad, I appliqued a matching flower over the top and then added a couple here and there like others have suggested.

Applique-the great fixer of so many problems.

I would throw a few stars (appliqued) on it...he will love it and so will you...meanwhile smack that cat! I am against declawing but would reconsider if I owned your cat!

Instead of kitty toys get a bag of dried catnip. Keep it in a glass jar - with a screwtop that kitty can't open!
Feed it at night...Kitty likely willplay hard for a while and stay zonked out all night.
Make some little orange mice and put a few specks
of catnip in them and kitty will play happily with them.
The reason I say orange mice is because you can see them!
and not step on them!- although they look like carrots, kitty doesn't really care!
And rub some specks of catnip around kittys bed - or where you want it to curl up and nap, and it wiil nap there.

This is what I would do, and try and match the fabric to the area of the hole :D:D:D

How about putting his name on the quilt, right over the hole.

good idea, or as others said. applique a star or planet. I did this to one of my quilts. I made the hole. appliques a store bought bee on it. still using quilt.

Could you make a special label just for him and put it over the hole?

i would applique a couple of rockets on the quilt like i meant it to be that way.

That happened with my daughter's quilt (only it was a dog). I just appliqued a few stars on the front and since he had chewed through to the back, I added a few to the back. She doesn't remember where the holes were.