Comet 103P Hartley, now around magnitude 10.5, near the open cluster M50, you will definitely need to click to embiggen the image to see the faint fuzzy dot that is the comet. Image taken with the GRAS 14 instrument at Global Rent a Scope and 3 x 120 second luminance images stacked in Image J using Z projection of maximum intensity.
Comet 103P Hartley is now much faded from it's glory days (see here for example). But it's been going through some interesting territory. Sadly, up until now when I have had time to image, the scopes have been clouded out or such, so I have missed a lot of interesting encounters.