We planted spuds on the allotment - Kestrel, Desiree, Red Duke of York, Pink Fir Apple, and some spuds that got forgotten in the bottom of the potato pile and started to sprout.
You can also plant spuds in a tub or barrel. Although I've never tried it this way myself I know some people who swear by it. Sam's class at school are doing it, and his teacher told me that Sam took over the class for a while to explain how compost is made and used, and how potatoes grow. Sam also corrected a pastor who was teaching the children the Easter story and the symbolism of Easter eggs - now the pastor knows that eggs only hatch into chicks when you have a cock as well as hens, otherwise the eggs are unfertilised.