The altar for the home school was so easy to make and believe it or not, I found the little chalice, paten, candlestick, candle snuffer, and bells all in second hand stores. I had purificators and other altar linen which had been in the family for years.
I am merely going to show you some photos from on line sources for this main element in teaching the Mass, with the Last Supper figures noted in previous posts.
This one is quite elaborate, but one, sadly, can find relics still on e-bay. This is more of a family altar, but I want to emphasize altars
which are child-sized and can be handled by the children.