could I add this to paint to make a magnetic wall?

No. Put a sheet of metal on the wall to do that.

Can you add this to water for sensory bottle

That would probably be a bad idea as it would rust and turn the water brown or orange really quickly.

What kind of magnet will repel these shavings? I want a "wand" to move the shavings to reveal a message. Is this even possible?

The closest you’ll get is switching the polarity in whatever magnet you use. But it won’t really move them away, it’ll just agitate the filings until each price is flipped. If that’s what you’d like to do then it may be best to get a long rare earth magnet and use it below the word to collect the shavings below and move them off the word. Any magnet will just collect the shavings and they’d be kinda hard to get off the magnet as these are pretty fine particles.

ASIN	B06XGHFQJ4
Age Range Description	Baby
Battery Types	No batteries required
Best Sellers Rank	#360,412 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #1,111 in Magnetic Field Therapy
Brand	SPACECARE
Colour	green
Customer Reviews	4.6 out of 5 stars 2,729 Reviews
Educational Objective	Creative Thinking, Shape Recognition
Indoor Outdoor Usage	Indoor
Is Assembly Required	No
Item Dimensions	49 x 49 x 104 Millimeters
Item Part Number	SPIP001
Item Weight	0.55 Pounds
Manufacturer	SPACECARE
Manufacturer Part Number	SPIP001
Material	Metal
Model Number	SPIP001
Operation Mode	Manual
Size	Small

SPACECARE Baby Magnetic Iron Powder For Magnet Education Iron Filing 12 Oz, Green

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