Hmmmmmm...

...a teleporter would be nice. As long as there are no traffic jams! Can you imagine if several people happened to be ported to the same place at the same time?

...also, a medical device similar to what was used in the original Battlestar Galactica. It was hand held and it diagnosed and cured illness/injury by just running it over the person.

The hamster goalies would be interesting, too!