So my player wants a hoverboard...

So i was thinking the following...

Hover 5ft from ground, moves at players walking speed, if player takes bludgeoning damage if makes an acrobatic check to stay on the board(failure leads to 1d6 fall damage)...If difficult terrain is below 5ft in height passer over without penalty

Its just for flavour really, but would like it to have some rules too to better reflect within the gameplay

I would reduce the fall damage to 1d4 since it’s only 5 ft above ground. I would also up the speed to walking speed +5, let it hover over liquids, and let them take the Dash action with it as a bonus action.

Quote from IamSposta >>

I would reduce the fall damage to 1d4 since it’s only 5 ft above ground. I would also up the speed to walking speed +5, let it hover over liquids, and let them take the Dash action with it as a bonus action.

 What kind of gold price would that be worth (including your adjustments)

That would likely be a Rare magic item, so… somewhere in the 4k range according to Xanathar’s.