PCs don't need keys! That's what the "break down doors" ability is for.

Handcuffs are really just a type of small door, if you look at it in the right way.

A pane of glass between you and a cool bit of cybergear is also just a type of door if you look at it in the right way.

Negotiating a treaty with a diplomat from a neighbouring kingdom? Also just a type of door if you look at it in the right way.

Transcript

Han: Okay, let's get into the handcuffs.
GM: There's only one pair.
Han: Right. Let me think.
{no beat panel}
Han: Put them on me.
Luke: Wouldn't it be better to put them on the person who isn't disguised as a trooper? {approaches Chewie}
Chewbacca: I realise this may sound a tad daft, but mayhap we need not handcuff anyone.
Han: If we don't cuff you, everyone from here to the cell block will mistake you for a Wookiee-gram.
Chewbacca: <sigh> Very well. {Han cuffs him}
Chewbacca: Do please try not to lose the key this time.
Han: Key?