Every Hidden Pennywise From IT Chapter 1 & 2

4. The Back Of Richie's Funeral Running Order - It Chapter Two

This might be the most difficult of the Pennywises to spot in the entire movie double bill, but it certainly looks like another place he's crept in.

When Richie goes to the Parade show in the square after he has his flashback in the cinema, he momentarily meets Adrian Mellon again - or a zombified version of him, anyway - who hands him what he thinks is a flyer for the parade.

When Richie examines it, it turns out it's a running order for his own funeral, which has his face on the front. It's easy to miss, but if you look at the back of the piece of paper as Richie's freaking out, it appears that there's a picture of Pennywise in a circle. Very much blink-and-you'll-miss-it.