Rediwhip has corn syrup as well.
If you have a stand mixer......put the bowl and the whisk attachment in the freezer for awhile. Make sure the fat free half and half you use is extremely cold. When the bowl and stuff is cold....whip is living he** out of it. It will take on some air. It won't get as fluffy or as stable as heavy whipping cream, but it does the job.....also, don't expect it to last (like it would anyway. Am i right?)