Poke a pipecleaner from the top to the bottom of one of the holes.
Bend the end of the pipecleaner under the plate to keep it in place (this is a leg).
Repeat for all 6 pipecleaner legs.

Put a string through the hole in the centre of the paper plate.
Tape the string in place under the plate
An elastic can replace the string to make an extra bouncy spider!

Hang your spider and enjoy!