while walking in trafalgar square

i found it really interesting how barely anyone was paying attention to what they were walking on, even when they had to physically step up onto something in order to get past they did not seem to notice. this gives us more freedom when it comes to our designs and how we are going to disguise our ink reservoirs- i think it was beryl who initially suggested using some sort of sponge that people could walk across, i was thinking that could really work in a sort of inking-up-a-stamp way. this could also somehow solve our problem of having to keep the UV solution from drying out ridiculously quickly.