D&D 5E (2014) Wheelchair options. Do these seem balanced?

[GMforPowergamers]

they would be silly since

this is highly disrespectful

 

[Bohandas]

Or something more fun, like a wheelchair that leaves a trail of fire.
View attachment 265070

Agreed. They definitely keep the wheelchair if they get Ghost Rider powers.

 

[mellored]

Agreed. They definitely keep the wheelchair if they get Ghost Rider powers.

...
now I want to make combat skateboards and combat roller blades too...

 

[Quartz]

How would you balance that?

Why would it need balancing?