Years ago my co-worker made these fabulous and functional card holders for my students. I needed more for larger groups and since I'm no carpenter, I decided to find some alternatives.
In this image, students are playing an inferencing game from Tie Dye Language
My child is obsessed with duct tape wallets. She's made one for every family member and is moving on to her classmates. It was no surprise to me that she found this great use for the wallets.
I love this one since it's inexpensive and so simple to make. I could make 6 card holders with just one $1 noodle!
These are so popular! This simple arrangement was made by snapping together two lines which formed a natural slot to hold up the cards.
Or you could have your critical thinkers create something a bit more elaborate like this one.
Check out Allison's blog at No Time For Flashcards for these fantastic ideas using everyday household items.