My cat Trinity loves her cat biscuit dispenser. She makes the biscuits come out all by herself and has a lot of fun in the process. It is purr-fect in her opinion. It is a tidy looking unit that can be made to any length to fit any space on a wall or cupboard in the house. The only working part (apart from the cat) is the elastic which is easily replaced. It is also extremely durable and largely weather-proof so we have one in the garden (the one shown in the instructions). Ants are not a problem. We just carefully cover the unit with plastic and surface insect spray on the wall and floor and there are no problems for weeks.

I "invented" the feeder after I watched Trinity playing with a plastic golf ball. However, nothing is new I guess. I saw just before I posted this instructable, one by biker_trash_1340 posted in 2009 with credit to a book by Tom Fox. A lot of people liked that idea so I hope you like this one as well.

Step 1: Everything You Need. the Feeder Cost Me Less Than $15 and Took Me Less Than 15 Minutes to Make.

4 x screws
1 x 150mm x 3.6mm cable tie
4 x feathers
1 x hollow plastic golf ball
1 metre length x 3mm dress elastic
1 x 25mm PVC elbow (45 degree angle)
1 x 25mm PVC end cap
1 metre length x 25mm PVC pipe
2 x 25mm saddle clips
1 x square container (round is OK but square stops spillage of biscuits at the wall)
cat biscuits

If you want a shorter unit you can buy a shorter length of PVC pipe or cut one to suit using a hacksaw.

Step 2: Making the Unit.

Put the elbow onto one end of the pipe.
Tie one end of the elastic to the golf ball and the other end to the cable tie.
Drop the cable tie into the elbow end of the pipe and pull through so the ball sits in the elbow.
Pull the cable tie and elastic over the other end of the pipe.
Fit the end cap. This is your lid and where you will drop the biscuits into the pipe so don't make it too tight.
Fasten the cable tie just below the end cap and cut off the excess so it looks neat.

Step 3: Fix Your Finished Feeder to a Wall or Cupboard or Garden Post.

Fix the feathers into the golf ball. I just poke them straight into one of the side holes. Half the fun for Trinity is making those feathers fly!
Use the saddle clips to screw the unit to a wall or cupboard or garden post. Make sure it is not too tight at the top as you need to take the end cap off to pour the biscuits in.
Fill the feeder with biscuits and place the bowl underneath.
Gently pull on the golf ball and show your cat how FUN equals FOOD!

The inside feeder is shorter, with a yellow ball and crazy pieces added from old toys to make it even more thrilling!