NIUTOP - Paint Marker Pen

I was given the chance to try out this nice Paint Marker Pen that I love! 
Here where I live I have a few materials that I can try them on, without making a mess all around. 
So, first I tried using them to make some stamps on my shirt,  I liked the stamps and colors on my shirt. 
Then I realized that I have a few seashells in my room, I live in Palm Beach, so I can tried to decorate them. I pretty much like the result, as a first try. What do you think?
About the markers: 
Premium Quality Paint Pens For True Artists: Extra fine point nylon tip paint marker pens water based with smooth flow, quick-drying, weather resistant, high quality certificated ink, environmental friendly. Perfect Acrylic Paint Pens Kit for Rock Painting, Glass Painting, Stone, Wood, Fabric, Glass, Metal, Ceramic, DIY Art Crafts and Most Surfaces.
32 VIBRANT COLORS PAINT MARKERS:
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