Essentially this is my design for a very simple and cheap sling-bow. It's not very powerful, nor does it possess impressive range but it can be made quickly from every day household items. <br><br>if you want to make one you will need:<br><br>- a stick of at least 30cm long.<br>- 20 rubber bands.<br>- some string.<br>- something to act as an arrow-guide. (I used a "sellotape ring" on my prototype)<br><br>the steps:<br><br>1. Attach the arrow guide to the stick (i used sellotape to stick the ring on).<br>2. Attach two pieces of string to the stick; one to the top and one to the bottom.<br>3. Tie ten rubber bands to each piece of string.<br>4. Attach the two pieces of string, via the elastics they are tied to, with another piece of string.<br><br>5. In the end it should look like this:<br><br><img src="http://i69.servimg.com/u/f69/18/10/72/53/slingb12.jpg" border="0" alt=""><br><span style="font-size: 9px; line-height: normal">*the space at the top is intentional and designed so that i could add various "accessories".</span><br><br>It is used like a bow; you place an "arrow" in the guide with it's notched end on the string, you then pull it back and let go to shoot.<br>(i used a simple, unfletched, wooden rod with a notch carved in one end and a blunt tip as an "arrow", mainly for safer indoor use)<br><br><br>It's not very powerful, the projectile i used will travel +- ten meters and will penetrate three or four 20X20 cm cardboard boxes or one board of plywood at five meters with a blunt, "raw-wooden" tip.<br><br>Prototype:<br><img src="http://i1056.photobucket.com/albums/t362/ultimatelizardman/image_zps461a5b25.jpg" border="0" alt=""><br><br><br><br>Also, i have three questions pertaining to future projects based on this design:<br><br>- I'm planning on upgrading to stronger bands in order to increase the power and/or range of my slingbow; i would like to know what you guys recommend.<br><br>- Would clay be able to make effective arrow-heads?<br><br>- Would it be a good idea to add a knife-blade to the top, facing forward, in the spot i left free for "accessories"?<br><br><br>sorry for the bad quality picture, i drew it in under ten minutes.