[ITEM SUGGESTION] SightPebble
SightPebble - Cost: 400 Gold 50 HP Unique – Warding: Consumes a charge to place a Stealth Ward. Holds up to 2 charges which refill upon visiting the shop.
Upgrades into 
Gives less charges, but provides early options, also non-supports can buy them to help with vision and sell it or upgrade it in the lategame.
EDIT: Option 2:
100HP
Gives 1 charge per trip instead of 2.
Also upgrades into 
This would give just an extra ward to use wisely, it would still be another option for non-supports to buy during laning or a good first-back buy for supports.
for the HP to later upgrade to sightstone - but I like the idea for an early trinket sell for a scanner.