Detailed instructions of how to make handy, oddball or downright weird things such as  
 
Fake wounds  
Fake snot  
Fizzy bath bombs  
Non toxic glue for lickable stickers  
 
And the one that really puzzled me -  
Edible fake barf  
:::
Bud Tugly: I bookmarked this for when my kids need ideas for a Science Fair.  
 
10!
Pics
zouhair: Great but realy lacks pics
...
deathburger: bump