Guess what this is

[Jones]

Yeah. It makes food last longer, water purer, sharpens knives; it's really interesting, whether you test it or not!

[RBS]

pyramid power was big in the 70's. Lots of rock banks used them in their album motifs. That's too bad Jones, would have been a great project.

Edit: Save your notes and do it in sociology class another time. I can see why a science fair teacher may have wanted to stick to the proven stuff.

[Mistery]

*Wonders what rock banks are*

[EscapeGirl]

OMB!! *faints* (Thanks for the good clue, Jones...I give credit to you on that one. )

Okay...here's the next item:

[RBS]

proofreader quit...oops.

[Lilliputt]

*Wispers* It's where we keep our marbles, dear da alien

EDIT:
I think that is a note gatherer thingy

[Jones]

If you have the supplies, you can build a pyramid that will fit you inside of it; everyday, you could take time to do homework or something that requires much concentration, because it helps you to focus!

EDIT: A toy where you try to keep things balanced?

[EscapeGirl]

@Mom....Nope.

@Jones...COOL!

[RBS]

Hmm..Escape's picture is one of those.....uh...things.....that you....have on your desk....uh-huh....and now and then you give it a thump.......and it wiggles for you.

[Lilliputt]

That was my impression too... but I dunno what those are called in English

[EscapeGirl]

Nope....it's not a "um...er....desk thumper thingy"

[Mistery]

A dust collector

[Lilliputt]

Do you have it in a study or office?

@Mistery

[RBS]

LOL Mistery, or phrased in the form of the mundane a collector....for dust.

[Jones]

Who knows? For all we know it might just be a normal miniature statue (I have my doubts but...)