[Q]: Objective: how to make an easy push block
[A]: Glue a piece of an anti-slide mat on a wood block and add a handle. Now you have an excellent push-block with good grip.

[Q]: Objective: juice a cucumber without a juicer
[A]: Peel cucumbers, trim off the ends, and slice in half lengthwise. Scoop out the seeds with a spoon and chop into chunks. Puree in a blender or food processor for ~2 minutes, adding a splash of water if needed to get it going. Set a fine mesh strainer over a bowl and strain the puree.

[Q]: Objective: Secure items at the beach.
[A]: Put valuables in empty water bottle.

[Q]: Objective: Make an organic whistle.
[A]:
Blow through an acorn cap.