When I was at university studying for my Industrial Design degree, I was tasked with creating product illustrations.
I was trying to create a texture on a rendering by blowing the ink off the end of my marker pen.
This was a messy and inaccurate technique so I created my first spray pen out of a plastic pipe. With no means to pursue this product after university I shelved it.
Now with the arrival of 3D printing, I dusted off my sketch pad to rediscover my original idea. Several months later and lots of prototypes I’m just about ready to sell my idea.