Determining which capacitor for a latching pushbutton circuit with NANDs
The big capacitor and resistor at the bottom of the circuit are used to produce a 5 second RC time constant so that to get the lamp to turn off one has to press and hold the switch for a long time (~ 3 seconds). The smaller RC components at the top of the circuit act so that a quick button press will turn the lamp on again.

You don't say what value ceramic capacitors you do have, but if you cut the capacitor values in half you will cut the time constants in half. If you want to restore the time constants simply double the resistor sizes.