A retractable scalpel blade, very very sharp, I don't use it or there would be blood everywhere after and there are not enough band aids in the house to help :p
One of many keys on my key fob. I should sketch the fob next, its a little Border Collie. You know you have too many keys when it takes almost 5 minutes to find the right one.
I blame shaky hands for the marker not being straight. My hands have gotten really shaky the last few days, not noticeable if you are not paying attention or my computer mouse gets slammed down on the desk but still a pain in the butt.