Horner says he's keeping his old shoes, but he showed off three pairs of tiny sneakers he is giving to his grandsons.
He says the shoes represent how Thursday's budget will renew the government's pledge to build the province for future generations.
Building that future has become a point contention between Premier Alison Redford's government and its critics.
The Opposition Wildrose party and the Canadian Taxpayers Federation say borrowing $17 billion to build schools, roads and hospitals will cripple future generations with high debt payments.
The federation has brought its oversized debt clock to the legislature, pulled by a truck, but it has been denied entry to the grounds.