It is an “Automatic Needle Threader” and a heck of a lot of people knew that! More than 50 people had the correct answer so we picked 6 at random. Here they are:
A gadget my grandmother once had for threading sewing needles. Richard Lewis
It’s a needle threader. Dual Sized for large and small eyed needles. L.Howell.
Desktop Needle Threader Ruben Capetillo
Automatic needle threader. It threads large or thin needles. Brandon Hanke
Needle threader. Roger
Looks to me like a needle threader for sewing needles. ScooterX
See ‘how to get your MAD magazine’ below, under the ‘cute, clever, could be’ winners.