lexical pointers
derivationally related form
semantic pointers
hypernym
hyponym
ball
balloon
cockhorse
doll, dolly
dollhouse, doll's house
Frisbee
hobby, hobbyhorse, rocking horse
hula-hoop
jack-in-the-box
jungle gym
jumping jack
kaleidoscope
kite
Lego, Lego set
Meccano, Meccano set
pea shooter
pinata
pinwheel, pinwheel wind collector
playhouse, wendy house
pogo stick
popgun
rattle
sandbox, sandpile, sandpit
seesaw, teeter, teeter-totter, teetertotter, teeterboard, tilting board, dandle board
slide, playground slide, sliding board
slingshot, sling, catapult
stick horse
swing
teddy, teddy bear
top, whirligig, teetotum, spinning top
train set
water pistol, water gun, squirt gun, squirter
yo-yo