Peewee
/ˈpiːwiː/
Definition 1 of 3
Pro Tip 1/3Small Objects
Used to affectionately describe objects of a particularly small size. 
She had a collection of peewee stones lined on her windowsill.
Pro Tip 2/3Not for People
Avoid using 'peewee' to call someone very small; it can be seen as rude or insensitive. 
The peewee cup barely held a sip of tea.
Pro Tip 3/3Emphasis on Size
'Peewee' emphasizes tininess so it's clear that something is notably small. 
He marveled at the peewee pumpkin that had grown in the garden.