New Red Gem uses - Craftables

[WaterBlazek]

My first concepts of items and structures into DST. If I ever learn how to mod, I might make a mod with these...
But what do they do?

Hamulet:
 When wore on body slot (like any other amulet) it restores Hunger by the cost of Sanity. (I know, it'd be a second Red Gem amulet...)
 Crafting: Red Gem, 3x Gold Nuggets, 3x Pig Skin

Heat Stone:
 When used (right clicked on this item in inventory), heats player almost to overheating temperature and keeps that temperature for some time.
 Crafting: 2x Red Gems, 12x Rocks (or 1x Thermal Stone, haven't decided yet)

Gem Bomb:
 Works similar to Coconade/Obsidian Coconade from Shipwrecked.
 Crafting: 3x Red Gems, Gunpowder, 2x Rope

Moon Protector:
 When the player is fighting near this structure, it has small chance of activating protective bubble, similar to the one from Thulecite Crown.
 Crafting: Red Moonlens, 10x Gold Nugget, 8x Living Log

Ultra Fire Pit (I know, this name sucks):
 Works similarly to Obsidian Fire Pit from Shipwrecked.
 Crafting: 5x Red Gems, 8x Rocks, 6x Logs

Tell me your opinion about these.
 

Also, Heat Stone's name is reference to original name of Thermal Stone

[_Ellat_]

I think there should be more uses for saphire since its only useful for.. wait is it ? Oh yeah its useful for crafting purple gems

I don't like these ideas very much EXCEPT moon protector it seems nice would be useful for bosses