I did this a few years ago. Living in the city of Stoke-on-Trent means there are places where you can pay to paint pottery with glazes and then collect the finished piece a week or so later. I found a place in Burslem which was about half the price of other potteries and the vase was double the size. I think it was called Stafford Pottery, its on the opposite side of the road to Burslem Town Hall. I gave the resulting jug as a Christmas gift. I usually paint cats but have been known to paint horses too… I know it’s mainly a kids thing, but it is fun.