The following quest items can be upgraded by Mother Maiamai in exchange for 10 lost Maiamais for each weapon. She will only upgrade weapons that you have purchased, not rented, from Ravio.
Ice Rod

Description: The Ice Rod is one of the game’s most useful weapons. Its icy blast can freeze enemies and some obstacles for a time, and it can solidify lava briefly so that Link can walk on it. This rod is very effective against fire-based enemies and bosses.
Ravio’s Price: Purchase for 1,200 Rupees.

Nice Ice Rod: Upgraded form of the Ice Rod.
Description: The Nice Ice Rod casts four ice blasts instead of only one, and uses up far less energy than its previous form.
Sand Rod

Description: This rod controls sand by briefly forming it into pillars, so that Link can access platforms by walking on top of, or wall merging into, the sand pillars.
Ravio’s Price: Purchase on discount for 800 Rupees.
Nice Sand Rod: Upgraded form of the Sand Rod.

Description: The Nice Sand Rod uses far less energy, and creates sand pillars that remain intact until new pillars are formed.
Tornado Rod

Description: The Tornado Rod commands the wind and can fly Link upward to high platforms or damage surrounding enemies by a gust of wind.
Ravio’s Price: Purchase on discount for 800 Rupees.

Nice Tornado Rod: The upgraded form of the Tornado Rod.
Description: The Nice Tornado Rod deals more damage, has a greater area of effect, and uses less energy with every use.
Bomb

Description: The bomb is a great tool for destroying cracked walls and opening cave entrances, as well as damaging enemies in groups. You can also use bombs to trigger certain switches in dungeons.
Ravio’s Price: Purchase for 800 Rupees.

Nice Bomb: The upgraded form of the bomb.
Description: The Nice Bomb uses less energy, the blast radius is larger, and damage is greater.
Fire Rod

Description: The Fire Rod casts a wave of fire that extends out and up from Link. It will burn enemies in front of and above Link. Unfortunately, the Fire Rod can hurt Link if used too close to a wall or solid piece of the environment. It’s very effective against ice enemies, terrain, and bosses.
Ravio’s Price: Purchase for 1,200 Rupees.
Nice Fire Rod: The upgraded form of the Fire Rod.

Description: The Nice Fire Rod casts a larger flame and covers a greater distance. It also inflicts greater damage and uses less energy.
Hookshot

Description: The Hookshot can grab items that are out of reach or damage enemies while also stunning them briefly. It can also be used to carry Link across terrain by targeting pegs and wooden plaques.
Ravio’s Price: Purchase for 800 Rupees.

Nice Hookshot: The upgraded form of the Hookshot.
Description: The Nice Hookshot shoots faster for repeated strikes and stuns enemies for a longer time. It also uses less energy.Boomerang

Description: The boomerang helps Link collect items that are out of reach. It can also damage enemies, effectively stunning them briefly.
Ravio’s Price: Purchase for 800 Rupees.
Nice Boomerang: The upgraded form of the Boomerang.

Description: The Nice Boomerang shoots three boomerangs in a row. Its speed and distance are increased while energy use is reduced.Hammer

Description: The hammer can smash objects, hammer down pegs, destroy cracked tiles, and interact with dungeon switches. The hammer is a great way to damage enemies as well.
Ravio’s Price: Purchase for 800 Rupees.

Nice Hammer: The upgraded form of the Hammer.Description: The Nice Hammer has a greater shockwave and deals double the damage! It also uses far less energy.
Bow

Description: The bow shoots long-range projectiles that can injure enemies from a distance, as well as trigger switches in dungeons.
Ravio’s Price: Purchase for 800 Rupees.
Nice Bow: The upgraded form of the Bow.

Description: The Nice Bow fires three arrows at once, so there’s no need to worry about aim. Like the other weapons, this upgraded form uses less energy than the previous form.
Bow of Light

Description: The Bow of Light is imbued with the power and light of the Triforce. It has to be fired when Link is merged with the wall. Be sure to target Yuga Ganon’s back to successfully inflict damage.
Location: This is given to Link by Zelda during the final battle against Yuga Ganon.