G'day Tim. Kathleen will be along at some time to officially welcome you to the Wizards of Aus, in the meanwhile I don't see you on my list of those who have hats, so here's your Wizard Hat.
Full size on click.
They don't do anything, as they're just a fun thing I give to Team Aus members. (Some folk ignore them, others add them to their biography, others may choose to display them as profile images, or use them in email. Choice is yours. )
If you choose to add it to your profile in any way, you don't need to (re)upload it to Wikitree, as it's already here, just use the image code (either the {{code}} or the [[code]] will work) and the image's ID# which is WizardsOfAus-85.png