|Tim Holtz scissors that I got in an Ebay lot of his stuff. I have to admit I love these scissors. They cut almost anything!|
However, the BEST thing I've ever used to sharpen scissors, shears, etc. is used aluminium foil. I say "used" because I don't like to waste anything but you could use new. Basically, before I throw away used foil I just grab a pair of scissors and cut it up! That's it. It works-try it. Just beware when using this newly sharpened scissors because they can become razor sharp.
You can also sharpen items with sandpaper! Try to use a fine grit. Just cut the sandpaper and voila-sharpened scissors.