Far for decoration you can use the simple pos (made of hard cloth or silicone) and the duos, different depending on the needs. I buy them from companies specializing in confectionery utensils, they are very good, comfortable and easy to operate.
One of them newer, I discovered it right in my neighborhood is Nova Pan - they have an online store, or a store in Dridu (Dridu station with 331, from Pta Presei to Poligrafiei), on Jiului Street.
Silicone powders are useful, they wash well, but on a stronger press on the filling they crack (they cracked on me after 2 years of use).