At a gift shop near my house, I saw a similar Scrabble wall art that used all of the names of the local towns and lakes. It was cool, but it was $200!
I had an old scrabble game at home that I used for mine. I had to buy another game at goodwill to get more of the letters that I needed, but that only cost $1.99.
The letters are just glued to the board, which is inside a shadowbox I bought at Michaels.
I used "family game room" words to create mine.
To make things easier, I created a crossword puzzle on-line to determine the word layout. I typed in the number of squares and the words I wanted to use, and it created the crossword for me. So much easier than trying to figure it out on my own! I used this site, but I'm sure any puzzle maker site would work.