There are various Gundam models in the market, but if you prefer assembling something by yourself, the following metallic nano puzzle Mobile Suit Gundam model may be more suitable for you.
This is a highly detailed, self-assembly and small Gundam model. As shown in the images, the completed mecha model is shaped as TMPPG-01 Gundam and sports highly subtle detailing along with shining glossy coating, and a simple base lets you show off the miniature Gundam and your amazing self-assembly skills in your showcase. Apart from that, the Gundam model kit consists of high-quality laser-cut pieces and comes with a mini spear and shield.
The metallic nano puzzle mobile suit Gundam model is priced at $45 USD. If you like it, jump to Japan Trend Shop for more detailed introduction.