Autore: Firkin

A collection of bubbles rendered using the buttons plug-in in Paint.net.

Design resembling a Celtic knot. There is a strand of such knots on openclipart.org, so here is another.

A black and white frame with a chequered pattern

A sort of wire frame effect. For the mathematically minded, it was made by plotting x=1.5*(15+sin(10*theta))*cos(1.5*theta), y=(15+sin(10*theta))*sin(1.5*theta), with…

A bit rough and unsophisticated. So vectorized this specifically to be my avatar on openclipart.com.

Made with a white pentagram on a black background, applying a hefty Gaussian blur and then using BoltBait's…