I should have posted this information earlier. Oxo, which makes all kinds of kitchen tools, is having a 20% off sitewide sale, which ends tonight.
I ordered and received their set of silicone roasting racks, and I also ordered a round silicone roasting rack, and a thin spatula-spoonula. (I threw in the last one to get free shipping, but it should be useful in cleaning out the last of the mayonnaise from jars.)
I bought the silicone racks because it is difficult to clean the metal rack on which I roast chicken pieces, even when I spray it with non-stick spray or rub it with oil.