private static ItemStack findBlock() {
        List<Block> blocks = new ArrayList<Block>();
        Collections.addAll(blocks,
            Computronics.tapeReader,
            Computronics.camera,
            Computronics.ironNote,
            Computronics.chatBox,
            Computronics.cipher,
            Computronics.radar,
            Computronics.colorfulLamp,
            Computronics.cipher_advanced,
            Computronics.nc_eepromreader);

        if(Loader.isModLoaded(Mods.Railcraft) && Computronics.railcraft != null) {
            Collections.addAll(blocks,
                Computronics.railcraft.detector,
                Computronics.railcraft.digitalBox,
                Computronics.railcraft.locomotiveRelay
            );
        }
        for(Block block : blocks) {
            if(block != null) {
                return new ItemStack(block);
            }
        }
        return null;
    }