I needed to transport from the store to home a furnace/air conditioner air filter. This is very delicate so it would not be safe to pack it in the Go-Getter bag next to the other things I was going to transport (from Target, the best store). I couldn't attach it on top of the rear rack because the bungee cords would crush it and bend it.

So I created a “delicate” shelf on the right sideloader using inner tubes. I used one inner tube and even created a “sleeve” to hold it towards the bike.