If you even have to ask, it shows that you lack the creativity or just plain-old-common sense. There are a million places you could hide your money.
Do you have air conditioning vents on your walls or on the floor? Take a screwdriver, remove the two screws, place the money in a brown paper back and neatly fold the bag until it fits in the vent without obstructing airflow.
Do you have a garage? Do I even need to elaborate on this? The garage is usually a place full of 'stored' items. Which means very rarely does anybody go through certain boxes or sections of the garage. Since I'm a nice guy, I'll make this easier for you... If it's Christmas time, maybe it would be safe to say that storing something in the Halloween boxes is a good idea?
Do you have a bedroom? Better yet, do you have a dresser with roll-out drawers? Another no brainer...
Remove the bottom drawer, stash your money somewhere inside and then insert the drawer back in here.
I just had an epiphany.
I hope the intention of this post is really NOT to give you an idea of places where to hide your drugs.
There are many place in your home nobody looks more than once a year. Boxed Christmas orniments for example or inside a tube of Christmas gift wrap. If your closet has a top shelf nobody looks there except to paint so put it in an envelope under your hats. Coat pockets or in an old boot are good but if your mother has a cleaning day when you aren't home she might throw out your old coats and boots. If you have an attic wait until nobody is home then go up and hide it above a rafter.
There are many place in your home nobody looks more than once a year. Boxed Christmas orniments for example or inside a tube of Christmas gift wrap. If your closet has a top shelf nobody looks there except to paint so put it in an envelope under your hats. Coat pockets or in an old boot are good but if your mother has a cleaning day when you aren't home she might throw out your old coats and boots. If you have an attic wait until nobody is home then go up and hide it above a rafter.
There are many cash hide places in your around.The best place is in the bank. Get a bank account with a trusted friend or relative (over 18).
#1 would be getting someone of legal age to open a bank account with you, given that the said someone would be trustworthy and won't lay a hand on the said account until you can change it to a solo one when you turn 18
or tell the banker your story and see if it will stick.
#2 Make some holes around your house that won't be suspicious, this works out since you'll get your crafting skills practiced and mastered if you want to do this ninja type move. *the idea here would be your drawers, look up how to make false bottoms*.
Keep a couple of dollars in a rather obvious hiding stop so they can find it. They will have thought they found your hiding place and stop looking. Then put the bulk of the money in an envelope and tape it to the back of your dresser or headboard or pin it to the inside of a coat or clothing you don't use everyday.
If you have a book self hide it in between the books (or in one) or behind a picture, then tape a coded message onto your wall or mirror giving you hints on where the money is but not giving it completely away. Like "your treasure will be found in Shakespeare" if that doesn't work out hide it in your shoes, so if you forget about them when you put them on you'll have your money, be careful about hiding things we forget a thousand things a day.
Obtain a briefcase using a mixture secure. Subsequently get hold of a locking pedal bike cycle, and discover a safe destination for a cycle your briefcase to help. Or maybe, do you have your own locker with classes? Have a bank-account using a trustworthy pal or even family member (over 19)?
Buy a briefcase with a combination lock. Then buy a locking bicycle chain, and find a secure place to chain the briefcase to. Or, do you have a personal locker at school? Get a bank account with a trusted friend or relative (over 18) ?
I used to hide mine behind my posters. You could also ask a friend you trust to keep it at their house. Your best bet is to get a bank account if you can find a bank that will open one for you without a parents' signature.