Do you run G gauge?
How about steam models?

I have a nice Aristo Craft G scale steam Christmas passenger set that I
run under the Christmas tree some years. As far as '0' gauge steam
goes I have a MTH C&O 2-6-6-2 Allegeheny articulated, a MTH scale 2-8-0
Western Maryland Consolidation, a Lionel scale 2-8-2 Frisco Mikado and
a Lionel 2026 from when I was a kid.