Keyboard "kid lock" software

Lock Keyboard For Baby (lk4b)

You need to have libgtk2-perl installed to run this.

To run the script, download the file on the linked page to a suitable location then run the command:

perl FILE

replacing FILE with the location of the downloaded file.

For information on available options run:

perl FILE --help

A non-software solution I'm currently using is a Logitech wireless keyboard (K320 I think) that has an unobtrusive power switch (ostensibly to save batteries).

A surreptitious flick of the switch and the kid has no idea it's your mouse clicks that are causing the changes on the screen and not their banging on the keyboard.

Same goes for the matching mouse.

xtrlock

I'm using xtrlock which locks keyboard and mouse pointer changes to a padlock. After entering your already common user password, the input devices are released again.