The Toxic Wastebasket is a one time use consumable item that sells for 150 Space Credits. It can only be used in battle and will deal a range of 25 to 30 Poison Damage. In addition, it has a 25% chance of poisoning any enemy that does not resist poison.
The Toxic Wastebasket is not bought but crafted. You can make one by placing any item with the Toxic trait into a garbage can. Keep in mind that the garbage can is consumed after crafting the item though. The Toxic Wastebasket can also be found randomly, 1 in 1050 chance, in any garbage can within the Radiated Ruins.