30 day art challenge by http://sachinteng.tumblr.com/post/79168511891/a-lot-of-people-have-messaged-me-about-the-30-day
30 Day Geek Drawing Challenge
January brings to mind new resolutions and goals. Finding and utilizing drawing tips and exercises is one way to keep your new art commitments going.
30 Day Doodle Challenge Might turn this into a writing challenge because that would be interesting
30 Day Drawing Challenge. Don't know when i'm going to do this but not today. i'll repost when i'mgoing to do it
Expressions Challenge Accepted by StyrbjornA.deviantart.com on @deviantART
Awesome list of sketch projects! This would be a fun way to exercise a little creativity in your spare time. One sketch a day or when you can just to keep your mind active. Be as detailed as you can, and take pride in your work.
100 Day Drawing Challenge by StickyPaladin
25 Day Christmas Drawing Challenge by The-Tabbycat-Witch on DeviantArt