I think they turned out rather well, and now I'm plotting how to do more.
The top photo is Big Leaf Maple Burl, about 8" tall and 11-1/2" wide.
The bottom one is some kind of unknown Pine, with a brilliant red, flame-grained surface when oiled. It is 10" tall and 4-1/2" wide at the base. Each has a clock face of 1-3/8", large enough to read close by on a desk top, and small enough to show off these flashy woods.
The tall pine clock is available at my Etsy website: BarbS Woodworks
The maple burl clock is on Desk Accessories on my main website.