This little fellow was tatted with Tat-ilicious' HDT called Seaglass. It is labelled a Size 20 but it does look more like a Size 40 to me. Love the colours of this thread. The tail got lost with the bookmark. I should have started from the head of the Stegosaurus. A charm that says 'Made with a smile' is attached with a jump ring at the other end. The pattern is from this book by Martha Ess which I just got for myself.
I tried to tie an infinity knot following a video online but not sure if I got it right though. I don't think it is easy to tell.