here is my light box thing i've been using. heres how it works:
Get the daffodil,
stick the daffodil into the playdoh.
put the playdoh on the paper inside the box.
get the piece of cardboard with tin foil.
stick your camera through the hole.
move the foil around until you find a good postion where the sunlight reflects into the box.
take a photo and Whola!

I carnt take all the credit for it - i got the idea from a magazine!