Weapons
Here I've listed all the weapons that you'll find and use throughout the game. It tells the locations and a little detail about the item.
The Fairy Slingshot- You get the Fairy Slingshot in the Great Deku Tree. It uses Deku seeds. It's a main weapon throughout the game as a child. This can only be used as a child.
The Deku Stick- The Deku Stick can be found in various places throughout Hyrule. You usually never have to buy any because you can find them by cutting grass, breaking pots, or killing enemies. It's a good item to use to light torches and to strike enemies. This can only be used as a child.
The Deku Nut- The Deku Nut is usually found all over Hyrule. You can get it by cutting grass, killing enemies, and breaking pots. You can also buy it for anywhere from 5 to about 15 Rupees. The Deku Nut usually stuns enemies. This can only be used as a child.The Deku Seed- The Deku Seeds are used in the Slingshot. The seeds can be found also anywhere in Hyrule. It can also be bought in shops. Prices vary with the quantity that you get. This can be used as a child only.
Bombs- You can get bombs once you have a bomb bag. Bombs can be found almost anywhere in Hyrule. You can buy them in shops also and prices vary with quantity. Bombs are useful for blowing up false walls, doors, and boulders. This can be used as child and adult.
The Boomerang- You get the Boomerang in Jabu-Jabu's Belly. The Boomerang is good for getting high up items that are out of reach, activating triggers, and defeating flying enemies. This can only be used as a child.
Bombchu- The Bombchu may be purchased or won. You can purchase it for various prices and you can get it as a prize at the Bombchu Bowling shop. Once you let go of the Bombchu you have no control over it.
The Fairy Bow- You get this bow in the Forest Temple. This bow is easy to use and very helpful. This is the only item you can use while riding Epona. Arrows may be purchased at shops anywhere in Hyrule for various prices. This bow can also use the Fire, Ice, and Light Arrows as long as you have magic to use them. 
The Megaton Hammer- The Megaton Hammer is in the Fire Temple. You can use the hammer to activate rusty switches, destroy boulders that can't be blown up, and break open false walls. 
The Hookshot- You get the Hookshot as a treasure for keeping up with Dampe's Ghost. You can use the Hookshot to pull you somewhere, or items to you. The Longshot- The Longshot is in the Water Temple. It is exactly like the Hookshot only it has a longer chain.