Delay and Table

There's been a bit of a delay because it's been difficult to find a suitable base for the mosaic.  I've gone through many possible options but none fit all of the requirements.  It's finally been decided to go for thick perspex which will hopefully be totally weatherproof, won't expand or contract in different temperatures, won't bend and can have holes drilled in the corners for hanging on the wall.  All I have to decide now is black or white?  I'm hoping to have it ready for when Juliet gets back from holiday.


Meanwhile a friend has asked me to mosaic this table top.  She uses it on her balcony and wants a spiral design in white and several shades of teal / turquoise.  Great! Now how does one draw a spiral? This is just a quick pencil sketch I drew to show her but it will need to be more accurate and bigger for the table.

The internet is amazing I put in a search and have been experimenting with drawing spirals using the Pythagorean method which uses a series of ever increasing triangles and the Fibronnaccii method which uses a series of ever increasing squares - good thing I liked geometry at school!   Neither look right though so I have another little challenge on my hands...  maybe I'll end up using the Binks method which uses a random swirl and hope approach.