Onomato-cardboard

I'm suddenly realizing that only two of the words were onomatopoeias, but the title is so good I think I'm keeping it anyway.

We were tasked to represent the following words using only cardboard, paper, tape, and color:

1. boing

2. splat

3. prickly

4. cold

I wanted to challenge myself and see how well I could represent the words with as few materials as possible, so I limited myself to just cardboard and tape.