Hi Sally - I just Googled toothpaste in a pump and it's sold at Target, WalMart, lots of places. Check out the web for places near you.
I don't see why you can't just use an empty soap container, hand cream, etc and fill it up with toothpaste. Soap is thick so that pump should be fine. You could even enlarge the entry with a pair of scissors, knife, etc. so it slides out easier.
Just a thought. Good Luck.
Love,
Terry