I recently bought some ice cube trays from W&P Design. They have some funky new ones in blingy cubes and a star shape:
So I had planned to freeze them atop a Thermos Funtainer like I do spheres, as I show in this post.
So I did that, but on top of my IceOlogy tray:
But I was thwarted, by a design feature - They have tiny holes near the top of the trays. This would be a feature when freezing regularly so that when the water expands into ice it doesn't push the mold apart.
But when you place these upside-down atop a thermos, the water runs out the holes.
The resulting cubes were less than half full. So I taped over it in the square mold.
In the star mold, I was able to push the tray down to the level of the hold in my thermos. I used a Yeti thermos for the square mold this time.
They're not perfect but the round one is MUCH better - see a video of it here. The square one is hard to get out of its tray in any case.
For the index of ice work here on Alcademics, follow this link.