I used to play a lot
. I still have my Deluxe set that's got ridges on the board to keep the tiles in place and the whole thing's on a Lazy Susan, so you can spin it around to see the words easier. It's a great game. But, occasionally, it could get a bit old. Well, Digraphs are here to help shake things up. They're a set of new tiles that can be added to the game. They're up on Kickstarter now.
From the campaign:
Digraphs is an accessory for Scrabble that introduces eight new tiles, each with two letters instead of one. It provides the chance for higher scoring as more points are up for grabs while requiring you to think a bit differently as you play. It’s a fun twist that can be added to Scrabble whenever you like.
The campaign is running now and is set to go for another 23 days.Source