You can use any sturdy plastic or metal container that holds 32 gallons or less and just mark it with the word “RECYCLING” on its side. It does not have to be blue.
Do not use cardboard boxes or bags as containers; they’ll end up wet, split open and make a mess on your sidewalk. Instead, flatten them and place them in your bin to be recycled with your bottles, cans and paper.
If one bin is not enough to hold all recyclables, simply add another one.