There are many different variations to how this game can be played. It is true that Alphabet board are easily available online – but they can be expensive when you are buying several for your classroom. So instead why not make your own and use it in multiple ways.
This is a bit like a jigsaw puzzle, the children have to arrange the letters in order. Once done you can ask them to point out the heavy letters or the naughty letters etc. Or you can go round the children asking them to name the letter, they get to hold on to it if they get it right and the one with the most letters at the end is the winner.