This is a splendid idea for my next party. I found it over at Brit+Co and I’m going to bookmark it for a rainy day. I’ve heard of using glow-sticks in balloons but never LEDs. I opt for the store bought LEDs over the DIYs because, let’s face it, party planning is hard work! But there is an awesome ‘how-to’ if you feel like making them yourself. Store bought or homemade, I love that these balloons give 24-48 hours of glowing fun! How great is that?! Here’s the link to Brit+Co’s full article: Brit+Co: Light Up Your Party With LED Balloons LED Lights inside balloons are an excellent replacement for the traditional candle. They make your party much more special, and aren’t that difficult to make yourself. Read through this guide and you will find out how to make fun LED Lighted balloons. To Make LED Lighted Balloons you will need: – LED Lights or LED Keychain – 5V Watch Battery (if using LED lights) – Tape (if using LED lights) – Balloon Step 1- Getting an LED The first thing that you will need to do is get yourself an LED which is suitable for putting inside a balloon. You can do this by buying plain LED’s off the Internet, or from an electrical store and powering these with a battery. Alternatively you can normally find keychain lights in dollar stores. Whether you choose to use an LED or a keychain light is up to you. The advantage of using a keychain is that you already have all the batteries and everything you need for the project. Some of these also have electronic circuits which can make the LED lights pulse and change color. If you do decide to use a keychain light for the project make sure that it uses an LED and not a small light bulb as this will heat up. Step 2 – Preparing the LED If you have chosen to use LED’s for the project then take them out of the packet. They are quite a small device which are very simple. There are two metal legs, one of which will be shorter than the other. The short leg is the negative side, and the longer leg the positive side. Push the battery in between the legs of the LED so that it is held in place. It should light straight away, but if it doesn’t then the battery is probably in the wrong way. Take it out and turn it around the other way. Once the LED is lit, it’s a good idea to put a small piece of plastic with a strip in between the leg and the battery. This will cause the light to go off and operate as a temporary switch. When this is in place wrap the legs and battery in tape to keep everything together. This is basically an LED throwie, and what many people attach magnets to and throw onto metal surfaces. However, you will probably be using it to put into a balloon. Step 3 – Using a Keychain LED If you wanted to use a keychain LED then this will be an easier option in most cases. If the key chain is small enough to fit inside the balloon easily then you don’t need to do anything else. However, if it’s too large then you will need to dismantle it and make it as small as possible. Step 4 – Assembly Just before you are ready to assemble the LED balloons pull out the tab of plastic and discard it. This will cause the light to illuminate and it will start using the battery. Once you have done this pop the LED into the balloon being careful not to dislodge anything. If you are using an LED key chain then simply turn this on and put it into the balloon. Then it’s just a case of inflating the balloon normally. Whether you are using helium or just air is up to you. Then get ready to show them off to your friends and family at the party. Additional Resources: Looking for more party decor ideas? Don’t miss this article by babble and also this one from Celebrations.