Generic great item-givers

There are a few generic great item-givers. These all have pools with identical items.

The generic great item-givers are:
 * Sealed Containers
 * The Greater The Risk in Yello World

As of January 27th, 2020, all of the items in the pool are:
 * All non-basic Boots, all non-basic Gloves, all non-basic Shields, all Sealed Containers, all "identified" Loot Crates, ACME TNT, Butter Bot, Dark Scroll: Death, Darth Revan's Mask, Defective Turret, Dys Action Figure, Fighter's Gi, Freeze Ray, Frostfire Figurine, Glitcho Glasses, Go-Kart, Goldfish, Heart Of The BGO Slut, Holly's Thicc Booty, Holy Hand Grenade, Hypno Glasses, Improbability Device, Light Scroll: Life Shield, Magic Star, Marieke Doll, Phaser, Plush Downie, Pose Master's Mirror, Radio, Satchel Of The Citadel, Spider Mine, The Avaril, Tiara Of Transcendence, Tome Of Magic, Vendroid, Wolf.