ASYMETRIC HEPTAGONS...

...& squiggles.

 Spent most of today making a horrible bridge for a fairly ghastly instrument https://www.flickr.com/photos/140921935@N07/34269844085/in/dateposted-public/- it's a Banjo Cavaquinho.

It's like a https://www.youtube.com/watch?v=vEymZ3rXOmc Banjolele as played by George Formby - only the Cavaquinho has steel strings :o(