new particle = CreateEntityByName("info_particle_system");

            DispatchKeyValue(particle, "effect_name", "boomer_vomit");

            DispatchSpawn(particle);
            ActivateEntity(particle);
            AcceptEntityInput(particle, "Start");
            Format(tName, sizeof(tName), "part%d", client);
            DispatchKeyValue(client, "targetname", tName);
            SetVariantString(tName);
            AcceptEntityInput(particle, "SetParent", particle, particle, 0);
            SetVariantString("eyes");
            AcceptEntityInput(particle, "SetParentAttachment");