I always claim not to have a favourite rubber stamp, but the grumpy cat image from Katzelkraft's "Les Chats Russes" set must be pretty close to it. It goes so well with all kinds of snarky sentiments!
Here I've teamed it with a Dylusions sentiment and a few randomly stamped pawprints and fishbones. I coloured the cat in with charcoal in dark and light grey, doing the coarse blending with a fingertip and the finer blending with a paper stump. I don't think I've used charcoal since I was at school - certainly the sticks I used were still wrapped in their unopened cellophane although I've had them for years.
I am sharing this with
Make my Monday - Monochromatic
Alphabet Challenge - Joke