In order to draw out the metaphor sign that represented the code-image of agricultural commodities of Tiantoushui territory, four design-steps modified from previously reports which described the conception of Saussure sign [6] [11] were further concluded in this work, as shown in Figure 1.

Through these steps extracted metaphor code, the authors would conclude some design elements of organic products and apply to the doll design of three-dimension (3D) by using the texture of wool felt. Briefly, the artificially assembled procedures of 3D creative dolls included 1) roll-up first the wool tightly, 2) poking the end of the doll to fix the wool, then repeating the first step, 3) molding the shape, and 4) sticking the different colors of wool. Finally, the different types of 3D dolls with wool felt were completed from a flat image code. Figure 2 showed that the 3D doll with wool felt was being artificially assembled using a like stick-needle tool by a creative designer according to the extracted sign steps described above.

Simply, semiotics is a discipline that studies signs. As we known, the various cultures generally derive different symbolic meanings. In the terms of generalized semiotics, it can almost cover all regular expression modes and characteristics

other than language [12] . However, Derrida (1982) also pointed out that the cognition of sign results from the socialization, and there was no one-to-one direct relation between the signifier and the signified [13] . Therefore, the focus in this work was to first extract the code-image of agricultural commodities of Tiantoushui community based on the Saussure sign concept.

After extracted the meaning symbols through the extraction procedures of this study, the authors finally completed three piece of creative works. As shown in Figure 3, the arc line code of pink-white implied that only good soil and water quality could cultivate good rice quality. The line-code of turquoise like represented the feelings of crispy and sweet guava. Because there is a fertile black soil resulted in alluvial plain beside the Zhuoshui-River, it can nourish the precious guava. From the early production time of Tu-Guava and Thai-Guava to the Pearl-like Guava, it has always been the production king of Guava in Taiwan. Also, the golden-yellow lines represented the imperial-like pomelo, which was not only juicy and delicious, but also spread somewhat aroma. After extracted the code-image of bio-inspired, the designed procedures of transformation were further showed in Figure 4, respectively.

For example, the green leaves drew on the upper half of the graphics even suggested that the quality of agricultural products produced by natural cultivation

method was the best than that of non-natural method (Figure 4). On the other hand, many colors are covered in nature, and will also alter with the change of the four seasons. The previous papers show that the colors will make lots of creatures including human physiology and psychology have wonderful feelings of resonance at any time [14] [15] . For a designer, the color can be considered as a kind of packaging design which is attached to the exterior of any creative design products and/or objects. Therefore, coordinated color-design and color planning can not only beautify the design of creative products but also effectively and directly enhance the competitiveness of commercial products [16] . Besides, the evidence also showed that this bio-inspired design should be somewhat different from the simple modification and selection design method previously described elsewhere [3] [5] . In other words, if designers just do a simple modification and/or selection, the creative work will finally result in fail due to the losing spirit characteristics inspired by natural objects. Therefore, the elements and meanings of code-image bio-inspired should be completely displayed in the creative works.

Subsequently, after extraction the elements of code-image based on the design-steps, they were further applied to doll-design of 3D using the texture of wool felt (Figure 5). The texture of wool felt belongs to a non-woven fiber fabric. It has some well physical properties, such as strong flexibility, well water-resistance, good warmth retention, non-flammability, noise-reduction, and so on [17] . Therefore, designers can create beautiful products according to the characteristics of wool felt, thereby producing a series of influential works to meet the different aesthetic viewpoints and fashion-demands of consumers. In this work, the 3D-dolls imitated the agricultural commodities were further completed,

they not only showed the compound metaphor of commodities but also might have the potential for promoting agricultural products in view of their cute and vivid shapes.