Let visitors to your house know that splatters of any kind are unacceptable. You will not turn the other cheek, you will slice it! What civilized person puts a cup glistening with condensation on a bare wooden table? That’s why we have this set of blood-spattered Dexter coasters. (To put cups on, not to slice people with.) Can you imagine slicing someone open with a dull-edged coaster? That would take a great deal of effort.
$20 for a box of six blood spattered slides from Thinkgeek (currently out of stock, sadly.)