We recycle shopping plastic bags as rubbish bags. You know: this is where you put carrots' peels, oranges' rinds, coffee grains, etc., before throwing everything to the garbage can. Did you notice that plastic bags do not stand up by themselves? That's why I decided to build a bag holder. The first one was made with pipes, but after one year, my wife decided that it was not nice at all and that it fitted only one size of bags. So I built a new wooden one.

Step 1: Needs

I started with sawing 7 pieces of trunnions , 25 cm long:

2 large pieces (2.8 cm)
5 thin pieces (0.9 cm)

Step 2: Drill the Holes

Then I drilled 3 holes in each large piece, the diameter of the holes being the diameter of the small pieces (0.9 cm in my case). Notice that the middle hole is perpendicular to the end holes. I drilled all through the pieces of trunnion. Be sure to make one and only one middle hole a little bit larger (with a file, for instance), because you will use it when adjusting the holder to the size of a bag.

Step 3: Insert Pieces

Then insert the 5 thin pieces that way. Use glue if necessary. I did not have to do it, but you might if your drilling is too large. Of course, do not glue the adjustment hole!

Step 4: And Voila!

This is what it looks like with a plastic bag on it: Adjust the size of the holder to the bag by sliding the horizontal piece. It was not too hard, was it?