Keep one word and change the other word.

e.g first poster - spare tyre

second poster - spare bed

third poster - bunk bed
I'll continue with

bed room

Sorry to be a pest ms lukehear but in my country and language bedroom is one word. I no Ireland is near you and the misunderstanding of languages can confuse you so how about we scratch that and stay with bunk bed and ill change it to

double bed

Awesome

water bed.

tap water

Awesome

tap dancing.

dirty dancing.

Dirty Dozen

Bakers Dozen

dozen roses

red roses