Description:
Now here we have the case of a cutie mark that is ambiguous as it is shown on two popular ponies in MLP. The defective sand glass (way too much sand in it to work properly) is the cutie mark of Dr. Hooves as well as Minuette.
If I went for a Dr. Hooves colored background here it was mostly because the painting on the glass stood out a little better with the brown background than it did on a Minuette inspired light blue one.
As with the other glasses I took and uploaded a separate scan of just the cork coaster with the cutie mark.