Saw this on the Myer website. Obviously not as cheap as the Big W toy sale and you have to buy multiple toys but if you missed out on an item at Big W, especially Earthrise Prime, this is probably the next best thing. Details below:

Save 50% off the second item when you purchase 2 items across Toys, Lego, Costumes, Kids Art & Craft, Stationery and Pets.*
Purchased in one transaction. Not in conjunction with any other offer. Excludes Clearance, Board & Card Games, Selected Lego (Creator Expert, Ideas, and 71043 Harry Potter Hogwarts Castle and 76139 Batmobile). Offer ends on 21/06/2020 11:59 PM AEST. *Discount online will be distributed across multiple items within order.