Discovery - Magic shop

Yesterday a great development - I discovered a magic shop... not that it sells stuff for magic, I am no closet abracadabra, I am just yer average muggle.... no it is Science Is and I went there to buy some Cyanotype paper but that was not all I left with....

Here is a worm in progress with magnetic counters along its back.  They aren't magnetic in themselves but work wonderfully on a desk (executive toy) magnet...
They certainly lend a little pizzazz to this nudibranch but you will have to wait till later to see the finished worm.