I have posted this before i have added other stuff this can possibly help with people on limited budget or in the broom closet feel free to share idea's
Cauldron- An old pot I use a small ceramic soup bowl with a lid
Atheme-A kitchen knife
Dish for salt- those little things you get at restaurants not the plastic ones but the ceramic ones...I use a soap dish and if im not using it the salt goes into a ziplock baggie so my cat doesn't mess anything up
Chalice for water and wine/grape juice- obviously a cup i use a small glass cup for the water and a really big cup for the wine
Wand- you can make them yourself if you don't want too you can always use your finger or your atheme
incense- you can make it yourself I'm not sure of the rules with that but i get mine at the dollar store if you make it yourself you need to have charcoal you can get those at smoke shops
incense burner or censer- I know sometimes they come with the incense
pentacle- you can make this yourself if you have a tile or disk availible I personally made mine with a glow necklace and twine
altar cloth- an old white sheet or black sheet i know they can also be different colors
candles/candle holders- candles you can get just about anywhere for about a dollar but if you dont have candle holders like me I've been using old wine bottles
burning dish- It should have some sort of foot so that no heat reaches the altar. The dish can be made of any material so long as it is not flammable and can be shaped like a bowl or a plate
bell- although the bell should be silver you can use a brass one i use a silver one that says christmas of 92
boline- can be any small knife with a white handle
statues/pictures of deities- I read somewhere (I'm sorry I can't remember where) that if you cant get statues or pictures you can use a seashell to represent the lady and a dragon to represent the lord
You can use anything you want to represent anything you want if that thing makes sense to you and represents what you want it to represent. :D Good luck and blessed be.