Buying obligatory gifts for other people is hard.

Buying superfluous gifts for yourself is less hard.

And that’s how you justify this.

Paddles up for the Entertainment & Music Memorabilia Signature Auction, your chance to own important pieces of celebrity history (or at least a 1963 Batmobile). Online bidding opens Monday, with in-person bidding launching December 6 at Heritage Auctions on Maple Ave.

You can check out the lot right here. And right below here are a few items worthy of a bidding war.

A custom-built 1963 Batmobile that was officially licensed by DC Comics.

Jimi Hendrix’s patriotic jacket. You know the one: red, white, blue... a jacket.

Beatles LPs signed by actual Beatles. Yes, even George.

Certified gold records from the likes of Led Zeppelin, the Rolling Stones and the Jackson 5.

An oil painting by Frank Sinatra that would look magnificent above your couch.

A signed Marilyn Monroe portrait addressed to “Ferdinand.”

So it helps if your name’s Ferdinand.