Tessa:

Honor- Stygian Iron/Olympian Silver sword, black leather hilt, s Honor- apphire/diamond pommel, shrinks to black mechanical pencil.

Eclipse- SI/OS bow sapphires/diamonds spread, shrinks to silver dog tags.

Dark&Light- SI (Dark= Mainly SI) /OS (Light= Mainly OS) daggers, black leather hilts, sapphire-diamond pommels, shrinks to a black iron and ruby ring.

Percy:

Riptide- Celestial Bronze sword, brown leather hilt, trident pommel, shrinks to a ball point pen.

Nico:

Shadows- SI sword, black leather hilt, onyx pommel, shrinks to a black skull ring.

Will:

Sunshine- CB bow, shrinks to rainbow bracelet.

Leo:

Flame: CB twin ballpeen hammers, brown leather grip, shrinks into a tool belt.

Calypso:

Hope- OS dagger, brown leather hilt, white diamond pommel, shrinks to flower bracelet.

Frank:

Peace- Imperial Gold bow, shrinks to gold dog tags.

Hazel:

Chance- IG calvery sword, gold leather hilt, topaz pommel, shrinks to a gold pencil.

Jason:

Thunder- IG sword, gold leather hilt, aquamarine pommel, shrinks to gold coin.

Piper:

Katropis- CB dagger, leather pommel, opal pommel shrinks to brown bracelet.

Thalia:

Lightning- CB spear, black leather grip, Cobalt pommel, shrinks to a can of mace.

(I actually don't know the names of the weapons of everyone either than Percy and Piper. Guessing!)