You probably won't find this patch anywhere else on the internet. It was sewn onto the jackets of merchandise sellers during the 2016/2017 Rammstein tour. However, as this was a festival tour with only a few non-festival shows, this patch is extremely rare.
In 2016 there were only 3 non-festival shows, and in 2017 there were the following:
May 20, 2017: Kórinn, Kópavogur, Iceland
May 28, 2017: Eden Aréna, Prague, Czech Republic
May 29, 2017: Eden Aréna, Prague, Czech Republic
June 25, 2017: Northwell Health at Jones Beach Theater, Wantagh, NY, USA
June 27, 2017: Hollywood Casino Amphitheatre, Tinley Park, IL, USA
June 29, 2017: Starplex Pavilion, Dallas, TX, USA
July 1, 2017: T-Mobile Arena, Paradise, NV, USA
There were two additional shows in 2018 and 2019, but since the patch says “2017”, we'll focus on this year's concerts.
So this patch was only worn by the crew at a total of 7 concerts. However, there are indications that the patch may not have been worn at the concerts in the USA. Unfortunately, there is no proof of this.
It is also important to mention that this patch was never officially sold. According to insider information, only 5 copies exist worldwide that were not permanently sewn onto jackets. This is one of these extremely rare examples.