If you have a "floating ceiling" and you want to hang things from the bars and dont want to pay for the hooks, you can always use a box of paperclips to do the trick.
All you need is a paperclip and about five minutes.
Step 1: The Hook for on the Support
First thing is to take the paperclip as shown in the photo.
Note: Notice the orientation of the paperclip
Bend the short piece of the paperclip down 90 degrees.
then bend the longer piece up 90 degrees
Step 2: The Hook You Can Hang Things From
Bend the short piece approx. 1/2 inch down.
Tip: On the side that ends bend at the middle
Next just bend the end piece down 45 degrees and over towards the rest of the paperclip.
Step 3: Installation
Put the longer piece against and over the upwards part of the T rod.
The hook should now be under the support .
Lower the tile back in place and you are finished!
Step 4: Hang Your Things :)
I used these to hang Christmas lights :)