Nothing really. You could use a hat or something to give mr potato haed a pompous look?
Mr Potato Head, Mr Beetroot, doctor ambulance
Mr beetroot walks on stage to find his good mate, mr potato head, sitting down thinking. Mr Beetroot: Hello Mr Potato Head, what are you doing?
Mr Potato Head: Thinkin about my girlfriend, Mr Beetroot.
Mr Beetroot: I never knew you had a girlfriend Mr Potato Head, describe her to me.
Mr Potato Head [describes a girl] Mr Beetroot stands up, and yells at Mr Potato Head… Hey! that’s my girlfriend! They then get in a scuffle, Mr Potato Head gets punched and falls down…… AMBULANCE (comes on and takes mr potato head off the stage)
DOCTOR (facing the audience): There’s some good news and some bad news…. The good news is Mr Potato Head will survive… The bad news is he’ll be a vegetable for the rest of his life!