Things you can win at several contests. Most of them help by boosting stats/skills, some of them trigger special occurrences too under the right conditions.
“"Eating the egg will bring you good luck, and it's good for you too."~ Cube The Paradise Egg is...Paradise Egg (PM2)
“The Master Brush is a contest prize in Princess Maker 2. It is worth 2100 G. It increases Art...Master Brush (PM2)