Aaand it is time for the reveal! It's a small block of injection molded ABS with a pad printed layer. Or: a yellow #lego brick with the letter W.Four people figured it out. Thanks for not spoiling it for others. First was @mattdawhit who somehow figured it out without any real hints. Also to James, @CiaraNi & @cazmockett This one was fun. Thanks for all the excellent comments. I'll post a new one later today and will use the hashtag #MicroGuessr (hint: it'll be another human made item).