2003 · ソースブック（プレイを拡張するルール／オプション）
Son of a Portable Hole!
A humorous d20 fantasy supplement centered on flumphs, with material for Avatars of the Flumph, the Lord of the Flumph, Dark Flumphs, Dire Flumphs, and other related creatures. It also includes a collection of original spells attributed to the gnome magus Donbian, including magical effects involving flatulence, doorknobs, and singing warts. Additional content includes a guide to the elemental plane of Candy, a clothes hamper of endless laundry, a sequel adventure involving an orc, pastry, and a flaming drow poodlemancer, and a d20 used car salesman prestige class. The collection is presented as a free, illustrated comedy supplement.
スキルベース（スキルを購入または獲得）属性／ステータス制（STR、CON、PERなど）レベル制（XPを獲得してレベルアップ）
ゲーム情報（人数、プレイ時間、対象年齢、クレジット）の出典：BoardGameGeek。