I finally got my roundtuit and cobbled up a dispenser for oyster shell. I got tired of cleaning out the bowl. It's the same basic shape as the feeder I built a while back. Just a simpler lid as I didn't think they would try an perch on something that small. It's made from a bit of 1x3 for the sides and a bit of 1x6 for the top and some other bits of wood for the tray.
JT

JT