I LOVE this little tealight mold! The bird is so adorable. I use a cement + sand + mortar mix and the mold is wonderful to work with. I've not had any issues getting the holder out of the mold and I'm honestly so impressed with the small details on the wings and tails. It can be a little tricky to fully eliminate small air bubbles, but I've actually had many people compliment the bubble marks (they say it makes each holder more unique and shows off the handmade quality). This has been really popular with customers at summer markets!