So, while at the pet store recently, we found a nice scratcher-stool to use instead. And with this one, I'll be making replaceable covers. Hmmm...do I foresee holiday covers?
If she feels the urge to spew, she can spew on this, and then I can throw it right into the wash.
Very simple construction - I cut fabric the size of the stool top, adding about 3 inches to the radius. I then made a wide casing and slipped in elastic to fit the fabric right around the top.
*sigh* It's so nice to finally stop traveling for awhile and be home to work on stuff!