Sure!
It's not a D20 system game, so its slightly off-topic, but in my "Maid the Roleplaying Game" campaign, which has surprised me by chugging along nicely weekly year after year, I've used a bunch.
It's kind of Magical Charlie's Angels in the hidden supernatural world (think White Wolf's masquerade or the Harry Potter-verse), which has given me much liberty at playing around.
The heroes have gotten a lift in Porco Rosso's seaplane, visited the sunken land of Mu in search of chrystal virtual realities with Captain Nemo, and tangled with the lightning-throwin sorcerers of Big Trouble in Little China.
They've spent most of the campaign lately trying to untangle the conspiracies by the evil Cabal, headed by amongst others Rasputin, Circe, the Tin Woodsman of Oz and Mary Poppins.
However, Mary Poppins defected from the Evil Side, and did seek refuge with the English Ministry of Magic. Retrieving her meant retrieving Merlin from the mental asylum where he had been hiding, having a brief run in with Daleks, getting the Great Dragon of Wales drunk again, and fighting a minor war with a few of HG Wells' Martians, who had remained, scheming, from the 1870:s by snacking on Dracula and thus turning into vampires...
As a side thingie during the defeat of the Martians, they happened to liberate the Fairy Queen Titania, which lent extra spice to the Unicorn Races at Ascot (the part of Ascot hidden from mundanes, of course...).
Wonder what I'll have to come up with if they decide to go after Rasputin next... But it is still great fun to come up with these cameos.