Cloning of George Washington
It's undoubtedly going to happen, and who's to say it hasn't already happened? It sounds like science and pretends to be science, but young GW is said to be in hiding, so there is no way to disprove it!

Strawberry Pop-Tart Blow-Torches
Don't try this at home, folks! Actually it is not pseudo-science because it can be tested. It is, however, very, very silly!

Claims that the earth has been visited by alien spacecraft are often disguised as serious science. When the claims fail to stand up to Popper's test (If they are wrong, can you prove them wrong?), they are pseudo-science.