So it looks like the question of "Should I do custom doodle add-ons" has been answered with a resounding yes. Not a single no vote at the time of this update.

I will make this add-on available on Monday and will give an update when it is so all followers can adjust their pledge if they'd like to include it. Please also be aware that you will be able to add it on during the backer surveys that go out when the Pintopia event ends!

The price point is going to be a discounted version of the regular doodle price found on my Artistree. This will be £35 (discounted from the regular base £45 price). To begin with there will only be 5 available slots but if there is a lot of interest in the add-on, I will increase this!

Now to go make a preview image for the add-on and get it ready.