We have to use catch bottles at our field to prevent fuel spillage when refueling. You can make a good one out of a medium sized pill bottle, remove child proof part of lid, drill two holes in lid for 1/8 brass tubing, use hot melt to secure (epoxy will not stick on that type of plastic.) Ask me how I know. You can add a short length of tubing on inside if you want to recoup your "spilled" fuel.

Even easier is using an old fuel tank from another plane. Just run the excess into the tank and pump it out in to the gas can later.