I'm trying to nicely glue together several pieces of wood like pictured below. The tool for this job is a clamp or multiple clamps. I don't have a clamp though. Is there some other way to nicely glue these pieces of wood together without having a clamp? Looking for a way to do this that won't take a lot of extra time, so like only gluing two together at a time, then waiting, then doing another one isn't an option.
If you want a good looking finished product, nothing will compare to using the correct tools for the job.
That being said you could tie string around the boards and do a tourniquet type thing to tighten them good. Wrap a string around the board, tie a knot at the two ends, close to having the string tight, but not too close. Stick a stick at the knot and twist the stick till the rope is tight. You'll also need to have something heavy across the boards to keep them all flat.
Warning: this will work but will require significant sanding/planing to have a good finished product and having the right clamps for the job will save significant time.