Leuk! Cement over ballon doen, laten drogen en prikken. Zelf nog niet geprobeerd!

Looks like they added gold paint inside too. Cement over balloon.

Gold colored cement

Lichtkugeln aus Beton f?r Kreative, innen mit Maya-Gold. Garden lights, made of Concrete for creatives, painted with Maya-Gold

Πώς να κάνει ένα ελαφρύ σκυρόδεμα Κήπος Σφαίρα για Μωσαϊκό - Ινστιτούτο Ψηφιδωτού:

How to Make A Lightweight Concrete Garden Sphere for Mosaic — Institute of Mosaic Art If you enjoy arts and crafts you will appreciate this site!