I turned my table to add to the length of my desk. I had Lowe's cut me a piece of pegboard and attached it to the front of the desk using cable ties. The letter boxes, I got from Target. They were plain black, so I added washi tape and decal stickers and attached them with pegs. I created a classroom letter for the kids to read. The flag says "Don't give up the ship." It's the Battle of Lake Erie flag. I ordered all my flags a few years ago from an online flag store. (Sorry, don't remember the name.)
The "Fishing Hole" reading nook. There are more flags in the back. They are all the flags that the US has ever had. The larger flag is a copy of "Old Glory" from the Battle of Fort Sumter. I put some stuffed animals in the chairs. They are good for reading time and test taking (stuffed animals are comforting). The black crates will get filled with recent read alouds and popular cookbooks (Kids LOVE looking and reading cookbooks and are always asking me to get more, even reluctant readers. Also, 3D books are great. The rule is to prove they read it and then they get 3D glasses.)
There you have it, my classroom in a nutshell. Hopefully, I was able to give you some ideas. I will post some specific DIYs that I did later. Right now, plans for the first day and sleep are priority. =)
Have an OWL-standing school year!