Send Scribble's in Gmail

In the Gmail iOS app there is an option in the new email compose page to draw a free hand 'scribble' and attach it to your new email as a picture. This is also available using the Gmail web access on an iPhone or iPad. The options include various colours, a variety of pen thicknesses and either s pen or a spray can. This could be a useful way of quickly adding an idea to your email.

As an example here is something I created earlier...