The chances are that there are not enough suitable sieves in the office already, so you’ll need to plan ahead and buy some.
Come to that, given the current weather conditions, there may be no sun outside on the pavement either. What you can do, therefore, is to take them away with you on holiday so that you can impress the locals on their sun-drenched pavements.
Here’s how you do it.
A close-up of the face on the left:
And the careful construction of the face on the right: