The webcomic Truth Serum is celebrating a year on the web by inviting some guest artists to help out this week. Creator Jon Adams says:

In celebration of the one-year anniversary of the Truth Serum webcomic, several artists with nothing better to do have joined together to create guest strips for one week, beginning April 1st. Those contributing their varied and unimitable talents include J. Chris Campbell, Al Columbia, Dave Johnson, Sean Murphy, and Rob Walton. (A new strip will appear each day whether you want it to or not. Sorry, mom.)