this is one of the ornithopter that i made .its very easy to make it .all you need is
2. icecream sticks(nearly 10)
4. paper clips.
8.a pair of scissors
it hardly took me 2 hours to meke it to fly it ,thats how easy it is.
Step 1: Crank
the crank produces the flapping motion in the wings
Step 2: Conneing Links
these links connect the crank to the wing spars
Step 3: Wings
in the first pic u r seeing the rubber band catch and the tail and in the second u can see the main wing
Step 4: Construction
these pictures are selp explanatory and as yo go thru them you can easily get how they are made.
Step 5: Making-spar-frame
for making the spar you need to glue the wires from the paper clip as shown ,you may need pretty good amount of reinforcement here to make it durable
Step 6: Complete
once u completed it let the glue get dry then toss it after winding the rubber band through the crank
it flies opretty well ,but depends how u made it mine flew for nearly 15 m