Rather than clutter the sidebar of the Snippets Playground too much, here are the Snippets Playground badges all in one place for you to copy and paste to your own blog accordingly. The main one shown below is also on the blog sidebar as a gadget and from there it also automatically includes the link back to the Snippets Playground.
The others are:
When you're a top pick 'Gold Star' challenge entry
When you're one of the fortnightly 'top picks'
When you're on the 'team of designers' for each challenge
When you're a 'Guest Designer' by invitation