I have 2 old dwarf apple trees (royal gala and golden delicious varieties from memory) and a dwarf pear (cordon style doyenne du comice) going free if anyone wants them.
I've never had great luck with them and they look a little unhappy (although one of the apple trees has an apple on it) so you may need to be a keen gardener to make the best of them, and the pear needs a pollination partner to bear fruit apparently.
BUT they are free. And one has an apple on it! Anyone keen?