I super love mid 2000's flash games so I loved the aesthetic of this game.
Unfortunately, I have fallen into the point with escape games where I have no idea where to go next and my own hubris doesn't want me to look at a walkthrough. To get an idea of how far I've gotten, I have the grass, pile of hay, magnet, batteries, and bucket of milk. The two hay blocks are in front of the window and I have seen what's on the other side.
Aside from hitting that dead end, this game was super fun and you nailed the Flash game vibe perfectly. Great job!
EDIT: OMG I JUST WATCHED THE WALKTHROUGH AND I AM NOT THE SMARTEST. Using the magnet on the haystack to find a needle is literally genius how did I not think of that. At one point, I literally went through my inventory using every item on every other item but I guess I never put hay and magnet together.