Yes, but the problem is that my next projectile is rendered as this one before..
EntityRegistry.registerModEntity(EntityMyItem.class, "MyItem", EntityRegistry.findGlobalUniqueEntityId(), this, 64, 10, true);
EntityRegistry.registerModEntity(EntityMySecondItem.class, "MySecondItem", EntityRegistry.findGlobalUniqueEntityId(), this, 64, 10, true);
RenderingRegistry.registerEntityRenderingHandler(EntityMyItem.class, new RenderSnowball(Items.egg));
RenderingRegistry.registerEntityRenderingHandler(EntityMySecondItem.class, new RenderSnowball(Items.fire_charge));