Yo... give me t3 boots but it's doran's combined with boots instead of the old effects
your dorans item+another doran's item+250 gold+ your t2 boots= minutely increased stats and a freed up inventory slot
combine any two doran's items to make it a bit broader
it'd actually be pretty cool for certain champs too

another idea is for supports to be able to put their tier 3 support item in their boots, allowing them a bit more oomph late game but making those stats only really accessible bot lane

Jungle items may be useful for this too, though they might need minor gold cost and stat reduction overall, so
would cost like 1.8k and only offer 30 ad but would still have the other effects
this would open up more build diversity, and more options for every single champ in the game.