diff --git a/avdd b/avdd
index a110b47..3542f50 100755
--- a/avdd
+++ b/avdd
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 USAGE="
 USAGE: avdd [<mod_list>='cpu mem bl vol-amixer bat dt'|-h|-[-]help]
@@ -38,7 +38,7 @@ EXAMPLES:
 
                 avdd 'vol-amixer dt' '[<' '<' '>' '>]' &
 "
-DEFAULT_MOD_LIST='cpu mem bl vol-amixer bat dt'
+DEFAULT_MOD_LIST='cpu mem vol-amixer bat dt'
 DEFAULT_PRE=' '
 DEFAULT_SEP_L='| '
 DEFAULT_SEP_R=' '
diff --git a/avds b/avds
index 3409bed..d050ea0 100755
--- a/avds
+++ b/avds
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 USAGE="
 USAGE: avds <mod_list|-h|-[-]help> [<when>] [<repeat>]
diff --git a/mod/bat b/mod/bat
index c43f5a8..666fd4d 100755
--- a/mod/bat
+++ b/mod/bat
@@ -1,11 +1,11 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 mod_bat () {
   # Customizable configuration constants
   local -r DEFAULT_CNT=1
-  local -r DEFAULT_PRE_PLG=' '
-  local -r DEFAULT_PRE_UPLG=' '
-  local -r DEFAULT_PRE_UNK=' '
+  local -r DEFAULT_PRE_PLG=$'\u26A1 '
+  local -r DEFAULT_PRE_UPLG=$'\u2755 '
+  local -r DEFAULT_PRE_UNK='?? '
   local -r DEFAULT_SUF='%'
 
   local -r cnt="${1:-${DEFAULT_CNT}}"
diff --git a/mod/bl b/mod/bl
index c1bc7a6..5c77ae0 100755
--- a/mod/bl
+++ b/mod/bl
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 mod_bl () {
   # Customizable configuration constants
diff --git a/mod/cpu b/mod/cpu
index eb4f8c0..af56983 100755
--- a/mod/cpu
+++ b/mod/cpu
@@ -1,8 +1,8 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 mod_cpu () {
   # Customizable configuration constants
-  local -r DEFAULT_PRE=' '
+  local -r DEFAULT_PRE=$'\U0001F7E9 '
   local -r DEFAULT_SUF=''
 
   local -r pre="${1-${DEFAULT_PRE}}"
diff --git a/mod/dt b/mod/dt
index b9696ae..49bb3f4 100755
--- a/mod/dt
+++ b/mod/dt
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 mod_dt () {
   # Customizable configuration constants
diff --git a/mod/mem b/mod/mem
index 0a715cd..b60ebfd 100755
--- a/mod/mem
+++ b/mod/mem
@@ -1,8 +1,8 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 mod_mem () {
   # Customizable configuration constants
-  local -r DEFAULT_PRE=' '
+  local -r DEFAULT_PRE=$'\U0001F9E0 '
   local -r DEFAULT_SUF='%'
 
   local -r pre="${1-${DEFAULT_PRE}}"
diff --git a/mod/vol-amixer b/mod/vol-amixer
index 15c59e4..e6a6d11 100755
--- a/mod/vol-amixer
+++ b/mod/vol-amixer
@@ -1,12 +1,12 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Requires amixer from the alsa-utils package
 
 mod_vol_amixer () {
   # Customizable configuration constants
-  local -r DEFAULT_PRE_LOW=' '
-  local -r DEFAULT_PRE_HI=' '
-  local -r DEFAULT_PRE_MUTE=' '
+  local -r DEFAULT_PRE_LOW=$'\U0001F508 '
+  local -r DEFAULT_PRE_HI=$'\U0001F50A '
+  local -r DEFAULT_PRE_MUTE=$'\U0001F507 '
   local -r DEFAULT_SUF='%'
 
   local -r pre_low="${1-${DEFAULT_PRE_LOW}}"
diff --git a/rpid b/rpid
index fe2897b..4e808eb 100755
--- a/rpid
+++ b/rpid
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 USAGE='
 USAGE: rpid <pid|-h|-[-]help> [<root_name>=login]
diff --git a/util b/util
index 5ae1cf4..03eb36c 100644
--- a/util
+++ b/util
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 if [[ -v IS_SOURCED_UTIL ]]; then return 0; fi
 IS_SOURCED_UTIL=1