Needle guides are disclosed. An example needle guide includes a base a housing configured to hold a container, the housing disposed on the base such that a longitudinal axis of the container is held at a first angle to vertical and a syringe holder configured to guide insertion of a needle of a syringe into the container, the syringe holder disposed on the housing such that the syringe is inserted into the container at a second angle to the longitudinal axis of the container.
