With this quick little invention you wont have to worry about watering your plants as much! just fill it with water and stick it in your plant's pot!
similar to the ones you see on tv:
only its very cheap and easy to make
Step 1: Materials
Soda bottle (just the cap)
Hot Glue Gun
Step 2: Prepare the Light Bulb
The first part in preparing the light bulb is cutting the bottom out,
first remove the metal "disk" out of the bottom with scissors
Step 3: Prepare the Light Bulb 2
Tunnel into the bulb and get rid of the black stuff and the insides (the glass tube and wire part)
remember your dealing with glass!
Step 4: Prepare the Light Bulb Part 3
Now pour salt into your light bulb and shake it up, it will remove all that white stuff from the inside and leave a nice clear bulb to work with, wash out the salt when your done with water, now our light bulb is ready!
Step 5: Prepare Your Pen
pull the insides out of your pen till your left with the tube
Step 6: Prepare the Cap
use a screwdriver and a hammer and make a whole in the cap then use scissors to make it wide enough for the pen tube
Step 7: Put the Tube Into the Cap
insert your tube into your cap and use hot glue around it
Step 8: Put Them Together
now just tape the bottom to the top and your done!