Create spelljamming helm (but personal)

By casting this spell on a normal chair or other seat, this spell transforms that chair or seat into a Spelljammer Helm suitable for powering a Spelljamming ship. The Helm this spell creates is a Minor Helm. The chair reverts to a non-magical object once the spell ends.

You can create a permanent Helm by casting this spell on the same seat-like object every day for one year.
At Higher Levels When you cast this spell using a spell slot of 9th level, the Helm you create is a Major Helm instead.