Holes in Wall with WallPaper

[Amy E.]

I've had tenants put small holes (like golf ball size or smaller) in walls, but typically they are behind a door (where teh door knob hits).  To fix this, I usually just put one of those large round, plastic door knob stops over the hole.  Prevents the hole from getting bigger without me having to patch/repaint.

This time, I've had a tenant put a hole in the wall, the wall has wall paper and its nowhere near a door.  Tenant has moved out (yes, I kept back some deposit).  But, I do lower end rentals and am really not concerned with looks all that much.  Still, putting random door knob stops in the dining room seems a bit low class even for my level of renting.  To top it off, this wall has wallpaper on it and I don't have any that will match.

Any other suggestions that won't look horrible?  If I actually fix the holes, I'll have to either strip and re-paper or repaint the entire wall.