Gaddget

Gaddgets are miniature toys invented by Professor E. Gadd in Mario Party Advance In total there are eighty Gaddgets. They can be earned by completing quests in Shroom City, winning Bowser's mini-games, and exchanging them for coins. The hardest to earn is the Power Star, which is bought for 100,000 coins.

List of Gaddgets

 * 4-P Pinball
 * Attack Frog
 * Bait 'n Wait
 * Bead Machine
 * Block Punch
 * Bomb Game
 * Bowser Poster
 * Bowser Print
 * Bonus Track
 * Breeze Buddy
 * Bull's-eye
 * Cake Maker
 * Card Trick
 * Castle Night
 * Chicken Race
 * Coin Poster
 * Compat-I-Com
 * Credits
 * Dart Attack
 * Desktop Golf
 * Dessert Menu
 * Digitizer
 * Egg Panic
 * Egg Roll
 * Eye Exam
 * Faux Flame
 * Heart Poster
 * Hope Chest
 * Hourglass
 * Jewelry Case
 * Lip Sync
 * Love Me Not
 * Magic Lamp
 * Map Maker
 * Mini Bowling
 * Mini B-Ball
 * Mini Maze
 * Mini Slugger
 * Mini Soccer
 * Moon Poster
 * Morse Maker
 * Passport+
 * Poochy Pal
 * Porta-Gust
 * Power Star
 * Predictotron
 * Pretty Poster
 * Rochambeau
 * Screen Clean
 * Shroom Bloom
 * Shroom Drop
 * Shroom Slide
 * Snooze Ewes
 * Snow Globe
 * Soil Sonar
 * Stick to It
 * Stress Press
 * Sun Poster
 * Tap-Tap Sumo
 * Tile Trial

Etymology
Gaddget is a portmanteau of the words "Gadd" and "Gadget".