;-) You know, the ones with the big hole in the back of the head? The drink cup things? Well would that make a safe hiding place for a betta?
It looks like this : http://www.ooga-mooga.com/cgi-bin/all/pictures.cgi?mode=gallery&mug_id=3041I'm not familiar with the actual product, but if it is dishwasher safe it is most likely tank safe. Ceramic is almost always tank safe.