As always we need a few more details.
How many sound blankets? (And please don't stretch it/them tight; leaves
lots of folds!)
How much do they weigh? (Most run 5lbs. - 10lbs.)
How much area are you trying to control sonically?
What gear do you currently own? (C-Stands, mic stands, extra tripods, etc. What can you adapt?)
What else do you have available? (blankets, quilts, pillows, etc.)
and the most important one...
What is your budget?
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My first suggestion is to RENT or BORROW.
Second suggestion - Use C-Stands. You can get 48" dowels such as those used for hanging clothes in a closet from Home Depot and similar places for about $3 to $5 each. That could easily handle two or three 10lb. sound blankets. 96" run around $15; should be able to hold four or five 10lb. sound blankets.
The Waddell 96 in. Hardwood Round Dowel provides a versatile material for use in do-it-yourself projects like woodworking, crafts, home repairs or school assignments. Waddell's wide selection of stock
www.homedepot.com
You can splurge on some S-Biners or Spring LInks:
You can use Zip Ties if your budget is really tight.
I hope this has helped a little.
Peace,
Uncle Bob