last weekend was helping to host a hammer-in when i wasn't teaching, I made a small "whisky bowl" out of a ball bearing. holds about 1.25 oz safely, more if you're willing to spill some. after most of the folks went home, I was handed a piece of mystery tool steel hex bar and told to make something - so I hammered this out, took it home, profiled and added bevels, then wrapped the handle before giving it back to the guy Sunday at breakfast. this weekend i made a second, slightly larger drinking bowl out of a chunk of 3/4" mild bar around 3" long -- which gave me room for a sacrificial tang to hold onto while shaping. the first one nests inside it and the new one holds up to 2 oz/50mL