Simon the Sorceror is quite good, though not fantastic. A lot of toilet humour. If you're up for a challenge then grab LOOM by Brian Moriarty. Very interesting game, which is advertised by one of the pirates in the Scumm Bar in Monkey one. Fantastical story about a magical world where a boy with the power of music is orphaned when his friends all transcend and turn into swans. The interface is built around playing music instead of using buttons. It sounds hard and weird, but is quite easy, short and fun.