Images by Wishbone, Y Bike, Skuut, and Strider.
Someone has a birthday in May.
And someone is probably ready for a running/balance bike.
Wishbone - my favourite but expensive
Y Bike - kissing cousin of the Wishbone but without an adjustable seat
Skuut - the entry from the Netherlands
Strider - the seat can go really low
They can all be found at Amazon.