you could make your own recycled paper.
this is how i first got into paper making years ago, being an artist i went through a LOT of paper and made a lot of paper waste. this was also high quality papers, little strips cut off for projects and cutting up paper, and when i started doing book binding i always had huge bags of trash paper bits.
the simplest
project and way to recycle paper is to tear it up a lot and throw it in a blender with some
water. you can do this with bills,
newspaper, paper bags from the grocery store, and all your misprints.
once you get it back to being all mushy and pulpy then either get something to use as a vat, or use your sink or bathtub, fill it with water and put the pulp in. theres some fiddling around with it to figure out how much water to pulp ratio, which will determine the thickness of your paper.
then you take a screen, a window screen would work, but fancier is to get or make an actual
deckle.
you hold the screen submerged in the water, with the other hand swirl all the pulpy water around to get it flowing evenly, and then pull your deckle up. on the deckle is you sheet of paper. wear gloves if you have concerns about whats in the paper, although i dont and havent ever had problems, but i dont know if you are extra sensitive.
there is a lot more to the craft of paper making, and you can get into all sorts of more advanced and crafty things with it, like putting flower petals or seeds into the water right before you pull the sheet, using coloring to get various colors, how to flip it on felt and press it to keep it flat, etc...but the basic method is really a very easy project you can do in an afternoon.