CIE Australia designed a design for a T-shirt logo to celebrate the 100th anniversary of the V(λ) function. We call this design "Heart beating for V(λ) " and it was created by a member of CIE Australia in a competition for this purpose. 

Two further versions, with an additional print on the back, are also available. The T-shirts can be ordered at https://vlambda.machtgluecklich.shop and shipped to Germany / Austria.