How about the siren song of designing cool swag? At the last startup I worked for, the owner pulled our one designer off product design for weeks to have her m

How about the siren song of designing cool swag? At the last startup I worked for, the owner pulled our one designer off product design for weeks to have her make t-shirt designs, PowerPoint templates, tchotchkes to gift to future (imaginary) customers, etc, etc. The product never launched, but the shirts were really nice.