A kit I use every day
One of them is this discontinued kit:
http://wb9kzy.com/morwatch.htm
Especially in the fall / winter I use the Morse Watch / Timer not as a watch but as a timer to control an electric foot heater (a McGill model 10804):
picture source: https://www.ebay.com/itm/174106194722
The thermostat on the heater I have was set way too hot in my opinion - a more ambitious person would have created or bought an external thermostat but I just use the Morse Watch / Timer to control the onboard latching relay - after a press and hold of the button it turns on the heater on for 10 minutes and then turns it off - so if I walk away or go out of the house I don't have to worry about the heater constantly being ON.
I built the Morse Watch / Timer into an old "Power Factor Controller" that I bought at a Chicago area hamfest in the 20th century. This unit was built in a phenolic box (the same one I use for some of the kit enclosures) with an AC power cord and an AC power socket and a sturdy aluminum top. I ditched the Triac circuit inside the controller and added the Morse Watch/Timer board, a 9V battery, a couple of switches and a piezo sounder. It works pretty well.
Best Regards,
Chuck, WB9KZY
http://wb9kzy.com/ham.htm