Try a wide variety of shots of the subjects using some of my suggestions below. Once you've taken the shots, upload them to the Random Object gallery here:

http://www.learnphoto.ca/gallery/v/group/random/

Here are some ideas:

GROUPING-If you have an object that you have a lot of, say marbles or coat hangers, try a shot of a grouping or pile of them.

LENSES-If you have a macro or close up filters, use them to get extremely close to a subject and make it more abstract.

ANGLES-Try shooting the subject at different angles. Look down into a box of straws, shoot up into a sink faucet.

LIGHT-Experiment with photographing the subject under different types of light.
Use direct light from the sun coming in the window, or a bare bulb of a lamp, or try diffused light from soft window light, bounce flash, or a shaded lamp.

SHUTTER SPEEDS-Try using slow shutter speeds with moving subjects to create interesting blur(like my slinky!)

ZOOMING, PANNING, ROTATING-Use slow shutter speeds (1/15th or slower) and intentional camera movement to create interesting images.

APERTURES/DEPTH OF FIELD-Try shallow depth of field(small aperture number-ex F4.5) to focus on a particular part of the subject.