A gold medal for your teacher!!!

 This is a perfert gift in expressing your appreciation of your teacher.  Be him or her to you... the important message is that this teacher is someone whom you have respect and regard for.
Why not to give him this medal for keep... the expression on the box should be adequately reflect your inner thoughts of him, albeit in the printed form.
The medal is 6cm in diameter, while the tin case holding it is 23cm x 15cm x 2cm. The weight of the whole set is 300grams.

The nice price to give this away costs S$18.90. 
Get this before the other students beat you to it.