For a long time I have been looking for a very small timer (1" x 1")
with an LED display (not LCD) that could be glued to the yoke clip.
With LED displays, battery life

I have a 3 function clock made by Westbend. It is fastened by velcro to the
left hand panel in front of the door. C172.
I time my XC legs and my approaches.
Hank N1441P