It's amazing what you can do with stuff you have around the house to include in PE collages. If I have a piece of fabric which I have dyed or painted which is really good, I scan it into my computer knowing that I may well use it in something else.
I use acetate sheets for monoprinting and the patterns that are left on the sheets are often better than the monoprint! Here is one I did a while back:
Another fun thing I like to do is scan in scraps of fabric and then use it as a background:
Combine that with this picture of a zebra I took at a game reserve in South Africa:
And you have this:
I'm looking forward to the embroidery course I have just signed up for which is starting in a week's time - could do something great with this I reckon!