Tandem Trainer

The Tandem Trainer is a treasure in. It is actually a pair of with the word "MARUFUKU" written on it.

Collecting the treasure
It is on a small lip on the central southern section of sublevel 2 of the Drafty Gallery. It is guarded by a Fiery Blowhog, which should be defeated before attempting to collect this treasure, although it is not strictly necessary. To collect this treasure, you must throw 10 Pikmin at it.