Certainly! Here's a simple Pine Script indicator for TradingView that plots moving averages:

This indicator:

1. Plots two simple moving averages (fast and slow)
2. Shows buy/sell signals when the fast MA crosses above/below the slow MA
3. Uses customizable lengths for both MAs
4. Works on any timeframe

Here's a Pine Script implementation of Bollinger Bands for TradingView:

This indicator:

1. Plots the middle band (SMA)
2. Plots upper and lower bands based on standard deviation
3. Includes customizable length and multiplier
4. Shows overbought/oversold signals
5. Has a shaded background between bands
6. Works on any timeframe

Here's the Bollinger Bands Pine Script code again: