The Universe (Freebie - Also Wearable)

This is a 3-dimensional representation of space-time (2 spatial, 1 temporal) from the Big Bang up to now. The temporal axis is logarithmic. The Hubble constant in the outer, dark energy-dominant epoch (9.8 Gigayears to present day) is set to 70.88 kilometers per second per kiloParsec.

You can rez it on a coffee table (may require some resizing), or wear it (around your neck, as a sort of Cosmic Cone of Shame - see picture).

Best of all: the universe only has a Land Imact of 1. Get the entire universe for free now, but get it quickly, before heat death sets in.