We also got new toothbrushes an they did not fit what I had been using before. Though I will keep it as I do change toothbrushes more often. I like the old tooth brush container so I cleaned it up and stored it away it worth keeping to me. But the new container had to fit the big bulky bottom of two toothbrush's simple. For real we did this picked up the two tooth brushes and a tube of toothpaste just in case!!! I found a container in the office supplies I liked and others here and there till we ended up in a row of bathroom containers we tried each one I liked out with the brushes ( had to be a little creative)
as they where still in the plastic wrap. But we got it to work enough to choose a stone box, with a lid that I don't need but will use as a pedistal for a figurine I have in the bathroom. The only thing in common to my original holder is they both are stone. But it looks ok and it fit the job it needed to do.
Happy puzzle solving!