Spaceholders for bar bag?

Hi,

my first gravel bike with a race bar finally arrived yesterday.

I already have a bar bag from my old bike, which I would like to continue using. However, I would like to be able to hold on to the race bar not only by the grips, but also in the middle section.

Does anyone know where I can get such space holders (like in the image) so that I can equip my bar bag with them and still have space between the bar and the bag for my fingers? (I am located in Germany)

Thanks in advance.