I will link a few tutorials down here, as I won't go into massive detail on what I did, so you can have a go at home if you want to!
First of all I chose my piece of wood. Other instructions say to build your wood board from planks of wood, but there was a old wooden door that wouldn't burn on the bonfire that was the right size, so I used that one instead. Sand down the board (mine had paint on it, so I needed too) until you can see the wood. Stain it in a colour of your choice, I would go for a lighter stain to achieve the look of the above picture, and a darker stain to go darker (like the burnt part of my wood in the bottom-left corner of my photo). Leave the wood for a couple of hours to dry, then paint the wood in whatever colour you need. Don't be afraid to put lots of paint on, it won't make a difference. Now, you could leave it like this if you want, but I decided I wanted to distress mine, so I waited until the paint was dry, and sanded it down until I was happy. You could then varnish it, but I chose not too. If you do however, make sure to use one that isn't shiny, otherwise it will glare in your photos! This took me a day to do, and to allow all the paint to dry, I don't think you could do it any quicker, so that is something to bear in mind.
What do you think? Will you be trying this out?