The website refers to a free $10 voucher on activation of your Howard's Inspiration account:
https://howardsinspirations.com.au/M_Benefits.asp
IMPORTANT - to complete your membership and receive your welcome voucher you must open the activation email and set your password.
Voucher code is "Welcome" and is valid for 2 months from registration date.
*Terms & conditions: Only one voucher can be used per member. Cannot be used with any other offer or discount. Voucher is not transferable or exchangeable for cash or Gift Cards. Only redeemable in participating stores -see here. A minimum spend of $30 applies to this voucher.
That should buy you something at Howard's Storage that you could get for $2 elsewhere…