Use them to predict the weather! Their scales close when its humid (predicting rain) and open when its gonna be sunny.

I think that pine trees find them useful for dispersing seeds :P

Make hooch

Chuck them in an open fire then get out your paraglider for a quick ascent

If you have access to a wood chipper or similar, they’re great for mulch, and as substrate component for some orchids.

Dip them in water and watch them close up tight.

Depends on the type of pine tree. Lot of the uses mentioned by others are dependent on the type. If you can identify the type, I’d try searching it.

In addition to the uses some have mentioned, some have medicinally useful compounds that can be extracted by alcohol.

Fire starters. We collect them all from our property ahead of winter too help with starting the fire.

I’m using them as Christmas tree decorations, but you can use them in multiple ways. You can hang them by a string, you can spray paint them and/or put them in a terrarium, etc.

Mugolio

The seeds from some kinds of pine are edible. e.g. pine nuts are used as an ingredient in pesto.

I’m pining for an answer to this question myself.

Organic enemas?

We used to pretend they were hand grenades and huck them at eachother.