Laura's husband gets a mini-medal of Parenthacker ingenuity for his switch-cover hack:
The kitchen sink in our new house is on the island, which means that the disposal switch is at a height of three feet, begging my son to play with it. What could be a worse idea?
Fortunately, my husband came up with a solution – he took a bottle from the recycle bin (happened to be a Johnson's baby soap one, but I think a gallon milk jug would be great – the opaqueness looks classier somehow), cut out a 4" long extended oval and screwed it over the switch with the screws that hold the switch cover on – making it bow out a bit. It curves over the switch and we can reach under it to hit the switch, but our now 2.5 year old can't quite coordinate getting his fingers under and doing anything with it.
Cheap, safe, subtle, and not unattractive!
More: Babyproofing hacks