New item idea (for Top laners who want to ward more often)

Hi guys, I thought of a new item idea that could be used for top laners who want to ward more often.

The ward bounce item (name pending) Builds out of chain vest, ruby crystal, and null magic mantle (enough of a cost to invest, higher cost than sightstone, but more scalable, which would be better for top laner slot efficiency).

Unique active: Ward throw. Think teemo mushrooms, but with wards. Allows to ward over walls into more obscure bushes without putting yourself in as much danger. May allow ward bouncing if placed on top of an existing ward a la teemo mushrooms too. Could have a better cooldown than yellow trinket since you're investing in vision (could have charges perhaps).

Reasoning: Build path tends to favor more tanky player type, but stay supportive. Sightstone's upgrade Ruby sightstone isn't that great stat-wise compared to other items such that top laners are deterred from the warding game outside their yellow trinket/blue upgrade. But even then, it's only once every ~90 seconds or so, so when the blue trinket dies, you're dependent on a pink ward or your unupgraded yellow wards with a long cooldown. Or on the rest of your team warding for you, which isn't that much fun either.

Riot may prefer top laners to not build wards, due to slot inefficiencies, but I doubt this is the case. Also, it'd need to be an entirely separate build path from sightstone, instead of upgrading from sightstone, as it is meant to have a cost to invest in to get the vision (higher buyin cost for the slot efficiency). I guess the alternative is buying one of the 'eye' items, like eye of the oasis, which, while close, seems to be more support focused, based on the build path and what the item 'does'. Hence why i'm looking for something with a bit more playmaking available. Since this mechanic isn't used yet, i'm wondering if a) it's possible, and b) if there's any interest.

Thoughts?