I got the idea from this video, but I wasn't keen on the idea of storing an 8' tall stick in a can even if 8' might be nice to have as an option. These I can easily store in a closet.
If you want something a bit more beefy/potentially taller, use larger buckets, more cement, and more wood.
Step 1: Materials
-9 Furring Boards (1"x2"x8')
-6 Buckets (4-5qt)
-Saw and Miter Box
-Latex Gloves (not shown)
-100lbs of Cement (2 x 50lb bags)
-Hose (or full watering can; not shown)
-Piece of wood for mixing (not shown)
-Junk Cup/Can (shown later)
-Level (not shown)
-12 2" Mending Plates (not shown)
-Screws (or bolts with washers and nuts; not shown)
-Drill and Drill Bits (not shown)
-Sander (not shown)
-3/8" Dowel Rod (not shown)
-5" lengths of Bamboo (or 1/4" dowel rod; not shown)
-Rubber mallet (not shown)
Step 2: Cut
Step 3: Tape
Note: Tape is being used so the boards aren't tightly squeezed together because the middle board will need a bit of sliding room later on.
Step 4: Cement
Follow the directions on the bag for mixing the concrete and add the concrete to each bucket.
Note: You will need gloves, latex gloves, and dust mask for safety. Rubber boots are also recommended to protect your other shoes.
Level and reposition the boards.
Note: I did not use a level because the boards are light and will neither be used for holding heavy things nor stressed.
Note: I suck at using cement.
Step 5: Sand
Step 6: Attach Mending Plates
Drill holes and secure with screws or bolts.
Tip: If the middle board is a little too snug in the fit, add small washers between the mending plate and the board.
Step 7: Drill the Expansion Holes
Mark 2 holes in the middle of an outside board separated by 2" or so.
Hold the middle board so that roughly the bottom 6" is sandwiched between the boards.
Drill holes through all three boards graduating the bit size until you reach 3/8" or the appropriate size to easily slip a dowel rod through.
Lower the middle board so that the upper hole in the middle board is positioned within the lower hole in the outside boards.
Insert a dowel.
Drill a hole through the middle board using the upper hole on the outside boards as a guide.
Continue lowering, inserting a dowel, and drilling until you have reach the necessary number.
Step 8: Sand Again
Step 9: Backdrop Holder
Pound the dowel into the hole with a rubber mallet.
Step 10: How It Works
You can attach lights using permanent hardware or hand clamps.
You can probably do a better job than I did.