I just opened up a Big Cartel account for our sketchbooks and two tiers of commissions. It has the last four versions as singles ($3 blank or $7.50 sketched) and it also a full set of sketchbooks collecting all 6 volumes for $10! - supplies are VERY limited on the sets.
Commissions are $25 and $50 - see site for details. If you have any questions feel free to gmail me: BigDogsStudio
Head over and check them out...and I'd really appreciate any shares/RT/mentions on whatever social media you may use!