This nice little thingy can be useful for budding singers. Its named as the Beauty Voice Trainer and helps one to gain good voice as it helps in excerising your vocal chord. It is available in two colors, orange and purple.
Priced at 4980 Yen ($43) it is still a good option considering that it can be done in your home sparing just 5 minutes of your daily routine. It measures 9 cm and can be found here.