Picture of How to Rig an Easy Booby Trap
I sometimes have problems with people in my family (mainly my sister) coming into my room uninvited and stealing things like movies and such. So I rigged up a simple but very effective booby trap based on a trap called the Tiger Trap (a type of dead fall) that was used by the Viet Cong in the Vietnam War. This booby trap is designed for doorways but can be adapted to just about anything. Please do not leave any rude comments, criticism is okay and questions are accepted and replied to as soon as I can.

Step 1: Materials

Picture of Materials
1) Fishing Wire
2) One Plastic Tube or Container
3) One Empty Scotch Tape Spool
4) Copy Paper
anryota20 days ago


Love it! It's very easy to make with few materials. Thanks for the great instructable!

Keep up the good work!

mohammada107 months ago

How does it work i dont get it please explain this

bibuditok11 months ago

i made my own for my sister.but my mom came in :P and i cane in without disarming it :P.im noob :/ anyway mine is diferent i taped that sirene thing on floore next to doore so when door is opened it goes off (to scare victim and inform me about its presence) i also puted double string on door handle and through chair hole to make so it pulls string when doore is opened and taped thoesstrings to razor i also taped thin rope thing on celing snd on it water baloon then i taped comon string to water baloon and pulled it so that if string was cuted baloon would fly throwards door but so that even if doore was opened just a bit.then i taped it on my tabel so that it gone throug razor wit 2 strings.now what hapened when my mom caome in (even tho i said to her not to) opening doore puled 2 strings and razor atached to thoes strings cuted third string at that time sirene went off and then baloon flyed on my mums head i know that it was wrong to pull this on my mum it was for my sieter and im now grounded.but she said that it was nice construction. if this gets many askings or likes or whatever ill make toutorial for this

newt1231 year ago


this is a good one! :)

pewdiepie2 years ago
Yeah yah
fun13 years ago
awsome it works so well.you could also put fun snaps in it so the people get a little fright,insted of using paper you could also use the bendy parts of the straws that way it will not chafe against the paper or rope. awsome moddel works so well :-):-):-)
kestoico3 years ago
empty toilet paper rolls work well too. so does the tubing from a hanger.

nice tiger trap....simple and effective.
rmacon3 years ago
I found that if you want a more permanent trap that can take weight instead of little paper tubes, for the bottom cylinder replace it with a staple that is partially inserted into the wall, remove the opposite end of the staple where the wire is resting on, bend it almost perpendicular to the wall and fold it in. And for the top one, insert a staple 2/3rds of the way into the wall. You can also staple the beginning of the trap, (The tripwire itself) to the wall as well, the triggering mechanism is the wire setting off the first bent staple, allowing the object to fall onto the target and for the trap to be reset too rather easiely instead of retaping and stuff.

The only problem is that it will not hit everyone, it depends on the length of fishing wire. If you are attempting to hit taller people, use less wire, or shorter people, use more.
rmacon rmacon3 years ago
If you tape the spol out far enough, the extra tape a couple inches ahead of the spool is not neccessary, it's only another thing to go wrong as well.
Hitman2274 years ago
I like it ill try this with my sister.
how does it drop it
Miscellaneous (author)  zipzapper8595 years ago
The trip wire is rigged through the pulleys to hold the container up. When the trip wire is released then the weight of what ever is in the container swings it down and drops the stuff in the container.
so the point where the end of the tripwire (the one opposite the containor) is attached can slip out?
striker1875 years ago
clever can't wait to try it
but it would be nice to suggest some possible substitutions for the cylinder

cut up pen tubes would probably work

thing 25 years ago
you should post a video of someone tripping it!
zexuan5 years ago
I have actually tried this before. Gave up halfway considering I was still a little kid then. What do you actually put inside the container? Can it hold up water?
Miscellaneous (author)  zexuan5 years ago
How could you be "a little kid then" if this has only been up for a month. Anyway, I put water in it when I set it and it worked perfect. Happy Hunting! :-)
as in i made something similar without before this guide was published
Miscellaneous (author)  zexuan5 years ago
Oh, that's cool.
try redoing the pics with regular string to make it more visable. nice though.
OK, next time I make an Instructable like this I'll use real string. Oh, and everyone can check out all my other Instructables on my profile page.
Ice Ghost6 years ago
Hey nice tiger trap!
Miscellaneous (author) 6 years ago
I hope that everyone likes this Instructable and I just want to say please no one "modify" my Instructable and publish it again just to have it as their own.