Try Wall Pop dry erase stickers on a table in your classroom! I use it for spelling work, small group instruction, and math time. They add a pop of color, too! I love this idea for my kiddie table for small groups!
Outlaw "I'm Done!" I LOVE this post from Kady at The Teacher Trap. She makes some really good points and includes suggestions for helping kids change their mindsets about rushing through their assignments.
Modify a piece of common molding to make a picture rail. Decorative golden picture hooks fitted with chain and rope display a mix of frames and add architectural interest. Use a circular link at the top of each chain to hang it over the hook.