I have an IKEA wall clock which I cannot mount onto the walls at my new apartment, but because it is a wall clock, it couldn't be kept on a table because it didn't have a stand. So I designed this stand where the rim of the clock could be inserted into the stand and it could be kept on a counter. 

The stand is 50mm x 30mm x 24mm. The wall clock had a diameter of 200 mm and a rim thickness of 3 mm. The stand can accommodate clocks with larger diameters and rim thicknesses of up to 5 mm. 

The photos show the older model that I didn't want to redo, but I made revisions post the first print and those files are uploaded. The revised file is for a stand that's deeper to provide more support and wider by 5mm to make it more stable and the solid construction has been hollowed out to reduce the amount of material required. I've also added some filets to make it look nicer.