hi sorry for the late reply! there really isnt anything special to do to make stickers other than having a trusty pair of scissors, predrawing some designs (at the appropriate dpi) and buying some sticker paper! i know some people use shipping labels (you can find large ones at office supply stores) to make their stickers and thats fine. I personally use this type of sticker paper (can also be bought via amazon.com). i think the type of the paper changed in the past couple of years though? it used to be a little bit heavier but now its lighter? :? i still use it though since it costs ~<$20/100 sheets which is nice!
hope this helps