FunkyProjectionMatrix.cs

using UnityEngine;

public class FunkyProjectionMatrix : MonoBehaviour
{
    public Matrix4x4 originalProjection;
    Camera cam;

    void Start()
    {
        cam = GetComponent<Camera>();
        originalProjection = cam.projectionMatrix;
    }

    void Update()
    {
        Matrix4x4 p = originalProjection;
        p.m00 += Mathf.Sin(Time.time * 1.1F) * 0.1F;
        p.m01 += Mathf.Sin(Time.time * 1.2F) * 0.1F;
        p.m02 += Mathf.Sin(Time.time * 1.3F) * 0.1F;
        p.m03 += Mathf.Sin(Time.time * 1.4F) * 0.1F;
        p.m10 += Mathf.Sin(Time.time * 1.5F) * 0.1F;
        p.m11 += Mathf.Sin(Time.time * 1.6F) * 0.1F;
        p.m12 += Mathf.Sin(Time.time * 1.7F) * 0.1F;
        p.m13 += Mathf.Sin(Time.time * 1.8F) * 0.1F;
        cam.projectionMatrix = p;
    }
}