A unique birthday calendar, a different breed every month and the style is based on the flowers, colors, theme and (noble) stone of that month.
For example, for April the colors soft yellow and grass green and the flowers, daisies and lathyrus.
This calendar can also be designed with with one breed! (Against extra costs)
And it is also possible to design a different style every month (see the 3rd image). So, for example, romantic, modern, surreal, steampunk, gothic, flowers etc. In principle, a lot is also possible, so one breed in one style, for example, Gothic.