I did a search for accounting mugs...for no reason other than I am a nerd. I found this awesome graphic, but decided $18 was too much to spend on a mug...so I printed it out and taped it to my water cup. All in a day's work.
I also came up with my own accounting mug design:
Some how...I think this day of slacking will also come back to slap me!
In case you are wondering, I do pride myself in my 10 keypad skills!