RandomSpinner.cs

//Steffen Vetne made this
//Creative Commons 0

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[ExecuteInEditMode]
public class RandomSpinner : MonoBehaviour
{
    //Fields
    public float speedMultiplier = 100;
    public Vector2 speedRange = new Vector2(1, 2);

    private Vector3 axis;
    private float speed;



    //Lifecycle
    private void OnEnable()
    {
        transform.localRotation = Random.rotationUniform;
        axis = Random.onUnitSphere;
        speed = Random.Range(speedRange.x, speedRange.y);
    }

    private void Update()
    {
        Quaternion rot = Quaternion.AngleAxis(speedMultiplier * speed * Time.deltaTime, axis);

        transform.localRotation = rot * transform.localRotation;
    }
}