iSkin Duo (pictured above) (Via Gizmodo) for roughly $50 in fancy colors like Yellow (Soleil), Purple (Persia), Dark Brown (Night Hawk), Blue (Sky), Pink (Glam), Clear (Arctic) and Red (Diablo), but for those on a budget - we've a few much simpler solutions for you.
Taking inspiration from TuneWear's iPad sleeve, one can easily recreate a decent waterproof seal using your run-the-mill large Zip Lock bags. Of course, we're hoping you're not submerging your iPad with your spaghetti or anything, but it certainly does the job.
Another idea would be following in the footsteps of Chef Chip Sheen of Charleston Grill, where he sends his iPhone through a CryoVac at the start of each shift for a tightly sealed plastic force field that guards against accidental sprays, steams and spills. One can easily apply a similar idea to the iPad. It's just finding one of these machines readily available for use... that's the hard part. Have an idea to cheaply waterproof your iPad from kitchen spills? Let us know below!