I just finished the quarantine period for my geckos and have switched from paper towels to ceramic tile. It looks very neat and has, thus far, seemed to be accepted by my geckos.
I have a breeder/friend who uses ceramic tile as well, so I know that it isn't "bad" for them at all.
-----
4 Corns - Aphrodite (Normal), Freya (Normal), Peyton (Amel), and Kal-El (Lavender)
2 Florida Kings - Thor (Axanthic Brooksi) & Lilith (Normal)
1 Leucistic Texas Rat Snake - MacLeod
1 Taiwan Beauty Snake - Mushu
1 W/C Banded Cal. King - Meridian
1.1 Leopard Geckos HET for Blizzard - Baldur & Nanna
0.0.1 SHCT Baldy Leopard Gecko
2.0 W/C Western Banded Geckos