@raye Aye yeah that's mostly what I've found over the past year-ish of trying block printing! Dark ink on light fabrics that readily absorb liquids (twill>denim>canvas), non-stretch only for lino blocks, but rubber blocks can handle stretchy t-shirt materials ok!

Haven't really messed around with colour or other ink sources yet though. Print supplies other than rubber blocks require a long drive or high shipping costs to get so I'm kinda cautious and sparing with everything.