Instructables
Picture of Indoor Bouncy House Safety Net
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We have an indoor bouncy house for our daughter.  It's great fun, especially when other kids come to play.  Plus, it literally pays for itself in babysitting fees because several couples can enjoy dinner and talk about boring adult stuff while the kids entertain themselves in the bouncy house (and then immediately fall asleep exhausted at the end of the evening).

Our specific model is a Island Hopper Jump-A-Lot Double Slide Bounce House 2012 available from Amazon here.  I've been very happy with it, except that the walls along the top slide aren't high enough, and I fear someone running down the slide (as 3-year-olds are wont to do) might fall out.  To help prevent this, I sewed on webbing loops and installed a rope safety net, effectively extending the wall upwards.
 
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Step 1: Planning the net

Picture of Planning the net
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Here, I'm assessing the situation and planning the placement of the net.  I neglected to take pictures before sewing on the webbing loops, but the images still show the problem clearly.  

Corvidae hasn't fallen out.  However, in the first image, she's standing on the tips of her toes and you can see how close she is to going over.  The second and third images are more relaxed postions.  

Step 2: Sew on loops

Picture of Sew on loops
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After deciding on the placement of the loops, I pinched the bouncy house's wall material and sewed on webbing loops.  The loops are folded over, and the stitches go through a sandwich of webbing and bouncy house nylon. 

Step 3: Loops while inflated

Picture of Loops while inflated
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Here are the loops with the house inflated.  Very little air leaks at the loops' seams.
I pinned your Instructable under "How to make cool stuff" Here is the description I included. "Indoor Bouncy House Safety Net. Head on over to instructables.com It's an amazing site, with lots of cool friendly helpful people from all over the world. (there is a strict "be nice" policy, so don't worry about any nasty people)
Coooooooooooooooool!
ummmmmm I made a fort with a blanket on top of two chairs. lolrotf
grannyjones2 years ago
Wonderful concept;
I can picture the use of a fine mesh fabric for the first foot or two,
to prevent some of the more 'accident-prone' children from
putting their heads in between the cords.
I know; just another old worry-wart---
'Natural selection' is tragic if it's your kid..
I'd definitely add a mesh. This seems like an accident waiting to happen.
randofo2 years ago
I am having trouble understanding this project without a computer illustration documenting what you have done ;-)