Here you will find several gel plates.
Gel plates are silicone mats in various forms.
You roll out the acrylic paint or ink with a roller (brayer), make figures with stamps or other materials.
Grabs a sheet of paper and presses it, and so you have a nice print on your paper
You can then use this for backgrounds for maps or in your artjournal.
You can experiment very nicely with these plates.