I pulled the chain out of the switch on my Sears ceiling fan. Any suggestions on where to find a switch replacement or adapt to something else? Sears no longer stocks the part, I have tried Ace Hardware, Home Depot and local ceiling fan store.

Four speed pullchains are not widely available, you can try CeilingFanParts.com Home, or just use a 3 speed replacement pullchain, omitting one speed and capping off one wire.

Ceiling fan pull chain replacement and repair - Ceiling Fans N More