ok so every year we go camping with a group of people and every year we bring my 2 guy cousins and this year at some family get togethers he has been hassiling me about how much he is going to get us with pranks and like shooting off fireworks by our tent and what not...but l need something bigger than anything he will come up with but nothing too major that will like hurt them or what not ive heard all the shaving cream and toilet paper but l wanna be able to tell him we have a couple surprises up our sleeves and him not being able to guess them and it to seriously SURPRISE THEM/HIM!!!!

The ole rubber snake in the sleeping bag/tent trick..

Hide some bacon and sweets in his tent just before he goes to sleep.

My friend once set off a stink bomb in someone is tent. ANd it stunk really bad. But it was hilarious!!!

Ok. So here is wat u do. Portapotty+Firecracker=Loudest Echo you have ever heard in YOUR LIFE!!!!

Or you can just put fish bait in his hand at night. or in his food. or on his face!!!

Or push him in the river (if you are camping by one)

Or make him a S'more ''especialy from you'' haha

if you have ever watched the film parent trap then you could try sme stuff out of there ,the scene where hallie sneaks into annies room and sets traps ,like honey on the floor and cream sprayed on their hair and pillow .stuff like that would be really funny , tried it before works a treat.good luck.hope you teach them a lesson

You could always zip-tie their tent shut.

do not tell him you have a surprise...let it be a surprise !

Wait till their out, & slip in their tent & open slightly their air mattress valve. Some times u need a penny or something to lodge in it to keep the valve open a little. Funny when they finally land on the floor. A slow leak is the best.
We once carried a guy sleeping in his bag on an air mattress down to the lake & sat him ever so gently in it. Out in the water well he woke up wondering what they ?? Crack up..
Next a funny one is u know one thing about camping is u always need to use the restroom.
Well wait till u hear them getting up to go & lock em out. Yep take ur sweet time & act stupid, have a great need of the restroom first..
If it is raining always visit their tent & touch the sides as much as possible. It causes leaks, funny as all get out if u do a good job.
Then u can wait till later & when they r out , have a needle & thread & put a couple of hoops around their zipper at their door way (s) , when they need to get up & use the restroom, well funny as all get out when they can not figure the thing out. Just make sure only do a couple hoops so u can easily clip them.

put shaving cream or peanut butter on their hands when they are asleep then lightly tickle their nose, make it feel like a bug. They will try to slap the bug off in their sleep!

Here are couple that might work. l might have tried a few of them. Go down to the creek and find a crawdad and put it somewhere fun such as a shoe, sink, or a shoulder. Get a small taxidermied animal such as squirel off of ebay and do the same. Many outhouses also have a lock on the outside for transportation. Take all your frozen water bottles and put them in the sleeping bag for a cold entrace.