
Years ago I worked for a startup magazine, and we traveled to a prominent college to do a launch event. Sadly, when we arrived we discovered that not only had our event had been poorly publicized, but the college kids were using stacks of our premiere issue (which we'd pre-shipped to them) to prop heavy doors open.
Ego blows aside, the fact remains that piles of magazines do provide weighty stacks of material with consistent dimensions, which ought lend itself to something useful after (or in our case, before) its reading purposes are over.

I'd have been less insulted if the college kids had strapped our magazines into Nju Studio's Sammeln Stapeln Setzen
Comments
next up, wheels on the bottom for easy moving
would love to see the cushion strap go underneath (instead of over) the cushion - not a fan of sitting on that directly. might also tie the magazines more securely.
@ greg: With Velcro on the outside of the straps which the cushion could grip to.
it looks like to me you could thread the straps however you want. personally id put the buckles in the "back" - easy access and out of the way. a modification i would do is put loops or similar along the bottom of the cushion/pillow to secure it to the stack.